Finding the Fourth Proportional to 116,713.90, 161,062.99 and 71,388.55
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Solution
The fourth proportional to 116,713.90, 161,062.99 and 71,388.55 is: 98,514.86
Step by Step Solution
- Step 1: Write the proportion equation
116,713.90 : 161,062.99 = 71,388.55 : x - Step 2: Convert to fraction form
116,713.90/161,062.99 = 71,388.55/x - Step 3: Cross multiply
116,713.90x = 161,062.99 × 71,388.55 - Step 4: Simplify right side
116,713.90x = 11,498,053,314.76 - Step 5: Solve for x
x = 11,498,053,314.76/116,713.90 - Step 6: Final answer
x = 98,514.86
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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.