Answer: 248 miles
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Work Shown:
1 hr, 30 min = 1 hr + 30/60 hr
1 hr, 30 min = 1 hr + 0.5 hr
1 hr, 30 min = 1.5 hr
The driver travels 93 miles in 1.5 hours, so his speed is
rate = distance/time
r = d/t
r = 93/1.5
r = 62 mph
In four hours, he travels
d = r*t
d = 62*4
d = 248 miles
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An alternative method is shown below
(93 miles)/(1.5 hrs) = (x miles)/(4 hours)
93/1.5 = x/4
93*4 = 1.5*x ..... cross multiply
372 = 1.5x
1.5x = 372
x = 372/1.5
x = 248