Finding the Fourth Proportional to 113,972.76, 157,265.76 and 71,544.96
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Solution
The fourth proportional to 113,972.76, 157,265.76 and 71,544.96 is: 98,721.59
Step by Step Solution
- Step 1: Write the proportion equation
113,972.76 : 157,265.76 = 71,544.96 : x - Step 2: Convert to fraction form
113,972.76/157,265.76 = 71,544.96/x - Step 3: Cross multiply
113,972.76x = 157,265.76 × 71,544.96 - Step 4: Simplify right side
113,972.76x = 11,251,572,508.57 - Step 5: Solve for x
x = 11,251,572,508.57/113,972.76 - Step 6: Final answer
x = 98,721.59
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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.