Finding the Fourth Proportional to 127,864.96, 176,463.25 and 74,149.50
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Solution
The fourth proportional to 127,864.96, 176,463.25 and 74,149.50 is: 102,331.88
Step by Step Solution
- Step 1: Write the proportion equation
127,864.96 : 176,463.25 = 74,149.50 : x - Step 2: Convert to fraction form
127,864.96/176,463.25 = 74,149.50/x - Step 3: Cross multiply
127,864.96x = 176,463.25 × 74,149.50 - Step 4: Simplify right side
127,864.96x = 13,084,661,755.88 - Step 5: Solve for x
x = 13,084,661,755.88/127,864.96 - Step 6: Final answer
x = 102,331.88
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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.