Finding the Fourth Proportional to 157,044.38, 216,726.99 and 87,195.65
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Solution
The fourth proportional to 157,044.38, 216,726.99 and 87,195.65 is: 120,333.19
Step by Step Solution
- Step 1: Write the proportion equation
157,044.38 : 216,726.99 = 87,195.65 : x - Step 2: Convert to fraction form
157,044.38/216,726.99 = 87,195.65/x - Step 3: Cross multiply
157,044.38x = 216,726.99 × 87,195.65 - Step 4: Simplify right side
157,044.38x = 18,897,650,765.59 - Step 5: Solve for x
x = 18,897,650,765.59/157,044.38 - Step 6: Final answer
x = 120,333.19
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1.5x scale
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.