Finding the Fourth Proportional to 141,694.20, 195,531.68 and 81,221.48
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Solution
The fourth proportional to 141,694.20, 195,531.68 and 81,221.48 is: 112,082.02
Step by Step Solution
- Step 1: Write the proportion equation
141,694.20 : 195,531.68 = 81,221.48 : x - Step 2: Convert to fraction form
141,694.20/195,531.68 = 81,221.48/x - Step 3: Cross multiply
141,694.20x = 195,531.68 × 81,221.48 - Step 4: Simplify right side
141,694.20x = 15,881,372,436.49 - Step 5: Solve for x
x = 15,881,372,436.49/141,694.20 - Step 6: Final answer
x = 112,082.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.