Finding the Fourth Proportional to 88,390.26, 121,861.53 and 73,227.06
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Solution
The fourth proportional to 88,390.26, 121,861.53 and 73,227.06 is: 100,956.39
Step by Step Solution
- Step 1: Write the proportion equation
88,390.26 : 121,861.53 = 73,227.06 : x - Step 2: Convert to fraction form
88,390.26/121,861.53 = 73,227.06/x - Step 3: Cross multiply
88,390.26x = 121,861.53 × 73,227.06 - Step 4: Simplify right side
88,390.26x = 8,923,561,569.00 - Step 5: Solve for x
x = 8,923,561,569.00/88,390.26 - Step 6: Final answer
x = 100,956.39
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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.