Finding the Fourth Proportional to 107,613.19, 161,423.87 and 54,961.17
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Solution
The fourth proportional to 107,613.19, 161,423.87 and 54,961.17 is: 82,443.84
Step by Step Solution
- Step 1: Write the proportion equation
107,613.19 : 161,423.87 = 54,961.17 : x - Step 2: Convert to fraction form
107,613.19/161,423.87 = 54,961.17/x - Step 3: Cross multiply
107,613.19x = 161,423.87 × 54,961.17 - Step 4: Simplify right side
107,613.19x = 8,872,044,761.13 - Step 5: Solve for x
x = 8,872,044,761.13/107,613.19 - Step 6: Final answer
x = 82,443.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.