Finding the Fourth Proportional to 113,944.28, 157,246.99 and 71,526.20
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Solution
The fourth proportional to 113,944.28, 157,246.99 and 71,526.20 is: 98,708.59
Step by Step Solution
- Step 1: Write the proportion equation
113,944.28 : 157,246.99 = 71,526.20 : x - Step 2: Convert to fraction form
113,944.28/157,246.99 = 71,526.20/x - Step 3: Cross multiply
113,944.28x = 157,246.99 × 71,526.20 - Step 4: Simplify right side
113,944.28x = 11,247,278,869.90 - Step 5: Solve for x
x = 11,247,278,869.90/113,944.28 - Step 6: Final answer
x = 98,708.59
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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.