Finding the Fourth Proportional to 149,713.80, 206,612.84 and 86,057.52
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Solution
The fourth proportional to 149,713.80, 206,612.84 and 86,057.52 is: 118,763.86
Step by Step Solution
- Step 1: Write the proportion equation
149,713.80 : 206,612.84 = 86,057.52 : x - Step 2: Convert to fraction form
149,713.80/206,612.84 = 86,057.52/x - Step 3: Cross multiply
149,713.80x = 206,612.84 × 86,057.52 - Step 4: Simplify right side
149,713.80x = 17,780,588,610.56 - Step 5: Solve for x
x = 17,780,588,610.56/149,713.80 - Step 6: Final answer
x = 118,763.86
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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.