Finding the Fourth Proportional to 155,470.97, 214,547.42 and 87,487.90
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Solution
The fourth proportional to 155,470.97, 214,547.42 and 87,487.90 is: 120,731.88
Step by Step Solution
- Step 1: Write the proportion equation
155,470.97 : 214,547.42 = 87,487.90 : x - Step 2: Convert to fraction form
155,470.97/214,547.42 = 87,487.90/x - Step 3: Cross multiply
155,470.97x = 214,547.42 × 87,487.90 - Step 4: Simplify right side
155,470.97x = 18,770,302,252.41 - Step 5: Solve for x
x = 18,770,302,252.41/155,470.97 - Step 6: Final answer
x = 120,731.88
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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.