Finding the Fourth Proportional to 129,517.13, 194,286.69 and 36,022.88
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Solution
The fourth proportional to 129,517.13, 194,286.69 and 36,022.88 is: 54,037.37
Step by Step Solution
- Step 1: Write the proportion equation
129,517.13 : 194,286.69 = 36,022.88 : x - Step 2: Convert to fraction form
129,517.13/194,286.69 = 36,022.88/x - Step 3: Cross multiply
129,517.13x = 194,286.69 × 36,022.88 - Step 4: Simplify right side
129,517.13x = 6,998,765,148.03 - Step 5: Solve for x
x = 6,998,765,148.03/129,517.13 - Step 6: Final answer
x = 54,037.37
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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.