Finding the Fourth Proportional to 185,982.20, 256,657.99 and 101,101.09
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Solution
The fourth proportional to 185,982.20, 256,657.99 and 101,101.09 is: 139,520.88
Step by Step Solution
- Step 1: Write the proportion equation
185,982.20 : 256,657.99 = 101,101.09 : x - Step 2: Convert to fraction form
185,982.20/256,657.99 = 101,101.09/x - Step 3: Cross multiply
185,982.20x = 256,657.99 × 101,101.09 - Step 4: Simplify right side
185,982.20x = 25,948,401,010.17 - Step 5: Solve for x
x = 25,948,401,010.17/185,982.20 - Step 6: Final answer
x = 139,520.88
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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.