Finding the Fourth Proportional to 129,971.92, 194,956.88 and 53,034.62
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Solution
The fourth proportional to 129,971.92, 194,956.88 and 53,034.62 is: 79,551.52
Step by Step Solution
- Step 1: Write the proportion equation
129,971.92 : 194,956.88 = 53,034.62 : x - Step 2: Convert to fraction form
129,971.92/194,956.88 = 53,034.62/x - Step 3: Cross multiply
129,971.92x = 194,956.88 × 53,034.62 - Step 4: Simplify right side
129,971.92x = 10,339,464,047.19 - Step 5: Solve for x
x = 10,339,464,047.19/129,971.92 - Step 6: Final answer
x = 79,551.52
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1.5x scale
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.