Wait, how would it be possible for Aragorn to be involved in anything going on during the Hobbit's timeline? Bilbo is supposed to be around 50 when the story starts. I started re-reading Lord of the Rings a couple weeks ago, and it says that Bilbo and Frodo share a birthday, and Frodo was turning 30 (age of maturity) at Bilbo's 111th. Then he doesn't even start HIS journey until he's 50. So even putting Aragorn at 20 years old during the events of the Hobbit, that would make him 110 years old once he meets up with Frodo... Have they ever mentioned that humans in the Tolkien universe live longer than us?
So apparently he does live longer. The math still doesn't seem to line up, but he does live longer.
In The Fellowship of the Ring, Aragorn joined Frodo Baggins, Bilbo's adopted heir, and three of his friends at the Inn of the Prancing Pony in Bree. The four hobbits had set out from the Shire to bring the One Ring to Rivendell. Aragorn, going by the nickname "Strider", was then aged 87, nearing the prime of life for one of royal Númenórean descent.