Finding the Fourth Proportional to 129,460.80, 194,197.60 and 67,252.80
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Solution
The fourth proportional to 129,460.80, 194,197.60 and 67,252.80 is: 100,882.52
Step by Step Solution
- Step 1: Write the proportion equation
129,460.80 : 194,197.60 = 67,252.80 : x - Step 2: Convert to fraction form
129,460.80/194,197.60 = 67,252.80/x - Step 3: Cross multiply
129,460.80x = 194,197.60 × 67,252.80 - Step 4: Simplify right side
129,460.80x = 13,060,332,353.28 - Step 5: Solve for x
x = 13,060,332,353.28/129,460.80 - Step 6: Final answer
x = 100,882.52
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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.