SOLUTION: On a trip of 173 kilometers, two people drive, with one driving 3 times as far as the other. Find the longer distance. Answer in units of kilometers

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Question 844110: On a trip of 173 kilometers, two people drive,
with one driving 3 times as far as the other.
Find the longer distance.
Answer in units of kilometers

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
The trip is divided into 4 equal parts: the 1 part
than the 1st person drives and the 3 equal parts
that the other person drives drives
Let +d+ = the shorter distance
+d+%2F+173+=+1%2F4+
+4d+=+173+
+d+=+43.25+
and
+173+-+43.25+=+129.75+
The longer distance is 129.75 km
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check answer:
+129.75+%2F+173+=+3%2F4+
+4%2A129.75+=+3%2A173+
+519+=+519+
OK