Finding the Fourth Proportional to 117,229.07, 161,776.28 and 63,514.09
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Solution
The fourth proportional to 117,229.07, 161,776.28 and 63,514.09 is: 87,649.53
Step by Step Solution
- Step 1: Write the proportion equation
117,229.07 : 161,776.28 = 63,514.09 : x - Step 2: Convert to fraction form
117,229.07/161,776.28 = 63,514.09/x - Step 3: Cross multiply
117,229.07x = 161,776.28 × 63,514.09 - Step 4: Simplify right side
117,229.07x = 10,275,073,207.79 - Step 5: Solve for x
x = 10,275,073,207.79/117,229.07 - Step 6: Final answer
x = 87,649.53
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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.