Finding the Fourth Proportional to 147,680.20, 203,798.96 and 80,612.20
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Solution
The fourth proportional to 147,680.20, 203,798.96 and 80,612.20 is: 111,244.99
Step by Step Solution
- Step 1: Write the proportion equation
147,680.20 : 203,798.96 = 80,612.20 : x - Step 2: Convert to fraction form
147,680.20/203,798.96 = 80,612.20/x - Step 3: Cross multiply
147,680.20x = 203,798.96 × 80,612.20 - Step 4: Simplify right side
147,680.20x = 16,428,682,523.31 - Step 5: Solve for x
x = 16,428,682,523.31/147,680.20 - Step 6: Final answer
x = 111,244.99
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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.