Finding the Fourth Proportional to 129,631.20, 194,446.80 and 110,604.30
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Solution
The fourth proportional to 129,631.20, 194,446.80 and 110,604.30 is: 165,906.45
Step by Step Solution
- Step 1: Write the proportion equation
129,631.20 : 194,446.80 = 110,604.30 : x - Step 2: Convert to fraction form
129,631.20/194,446.80 = 110,604.30/x - Step 3: Cross multiply
129,631.20x = 194,446.80 × 110,604.30 - Step 4: Simplify right side
129,631.20x = 21,506,652,201.24 - Step 5: Solve for x
x = 21,506,652,201.24/129,631.20 - Step 6: Final answer
x = 165,906.45
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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.