Finding the Fourth Proportional to 134,713.20, 202,069.80 and 82,225.20
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Solution
The fourth proportional to 134,713.20, 202,069.80 and 82,225.20 is: 123,337.80
Step by Step Solution
- Step 1: Write the proportion equation
134,713.20 : 202,069.80 = 82,225.20 : x - Step 2: Convert to fraction form
134,713.20/202,069.80 = 82,225.20/x - Step 3: Cross multiply
134,713.20x = 202,069.80 × 82,225.20 - Step 4: Simplify right side
134,713.20x = 16,615,229,718.96 - Step 5: Solve for x
x = 16,615,229,718.96/134,713.20 - Step 6: Final answer
x = 123,337.80
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.