Question 807022
This can be solved as a proportion:

{{{(143.4/x)=(6/72)}}}

Next cross-multiply:

{{{(143.4*72)=(6*x)}}}

This simplifies to {{{10324.8=6x}}}

Now divide both sides by 6 to get:

{{{1720.8=x}}}

This car can travel 1720.8 miles on 72 gallons of gasoline.

Also, you could have reduced the {{{6/72}}} to {{{1/12}}} and solve it normally if you would have liked to.

Hope this Helps!