Finding the Fourth Proportional to 100,337.08, 138,463.14 and 55,625.08
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Solution
The fourth proportional to 100,337.08, 138,463.14 and 55,625.08 is: 76,761.48
Step by Step Solution
- Step 1: Write the proportion equation
100,337.08 : 138,463.14 = 55,625.08 : x - Step 2: Convert to fraction form
100,337.08/138,463.14 = 55,625.08/x - Step 3: Cross multiply
100,337.08x = 138,463.14 × 55,625.08 - Step 4: Simplify right side
100,337.08x = 7,702,023,239.55 - Step 5: Solve for x
x = 7,702,023,239.55/100,337.08 - Step 6: Final answer
x = 76,761.48
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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.