Finding the Fourth Proportional to 100,398.26, 138,553.98 and 60,104.26
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Solution
The fourth proportional to 100,398.26, 138,553.98 and 60,104.26 is: 82,946.50
Step by Step Solution
- Step 1: Write the proportion equation
100,398.26 : 138,553.98 = 60,104.26 : x - Step 2: Convert to fraction form
100,398.26/138,553.98 = 60,104.26/x - Step 3: Cross multiply
100,398.26x = 138,553.98 × 60,104.26 - Step 4: Simplify right side
100,398.26x = 8,327,684,437.95 - Step 5: Solve for x
x = 8,327,684,437.95/100,398.26 - Step 6: Final answer
x = 82,946.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.