Finding the Fourth Proportional to 129,630.70, 194,446.05 and 94,201.30
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Solution
The fourth proportional to 129,630.70, 194,446.05 and 94,201.30 is: 141,301.95
Step by Step Solution
- Step 1: Write the proportion equation
129,630.70 : 194,446.05 = 94,201.30 : x - Step 2: Convert to fraction form
129,630.70/194,446.05 = 94,201.30/x - Step 3: Cross multiply
129,630.70x = 194,446.05 × 94,201.30 - Step 4: Simplify right side
129,630.70x = 18,317,070,689.87 - Step 5: Solve for x
x = 18,317,070,689.87/129,630.70 - Step 6: Final answer
x = 141,301.95
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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.