Finding the Fourth Proportional to 113,992.68, 157,306.68 and 63,691.68
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Solution
The fourth proportional to 113,992.68, 157,306.68 and 63,691.68 is: 87,892.72
Step by Step Solution
- Step 1: Write the proportion equation
113,992.68 : 157,306.68 = 63,691.68 : x - Step 2: Convert to fraction form
113,992.68/157,306.68 = 63,691.68/x - Step 3: Cross multiply
113,992.68x = 157,306.68 × 63,691.68 - Step 4: Simplify right side
113,992.68x = 10,019,126,724.42 - Step 5: Solve for x
x = 10,019,126,724.42/113,992.68 - Step 6: Final answer
x = 87,892.72
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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.