Let x be the distance Triana travels on each of the remaining three days. The total distance Triana travels on those three days is 3x. Since the total distance Triana travels on the bike ride is 120 miles, we can write the equation 24 + 3x = 120. Solving for x, we get 3x = 96, which implies x = 32. Therefore, Triana will travel 32 miles on each of the remaining three days.