Finding the Fourth Proportional to 159,641.30, 220,304.17 and 87,048.09
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Solution
The fourth proportional to 159,641.30, 220,304.17 and 87,048.09 is: 120,125.91
Step by Step Solution
- Step 1: Write the proportion equation
159,641.30 : 220,304.17 = 87,048.09 : x - Step 2: Convert to fraction form
159,641.30/220,304.17 = 87,048.09/x - Step 3: Cross multiply
159,641.30x = 220,304.17 × 87,048.09 - Step 4: Simplify right side
159,641.30x = 19,177,057,217.54 - Step 5: Solve for x
x = 19,177,057,217.54/159,641.30 - Step 6: Final answer
x = 120,125.91
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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.