Finding the Fourth Proportional to 126,207.72, 189,306.99 and 51,325.74
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Solution
The fourth proportional to 126,207.72, 189,306.99 and 51,325.74 is: 76,986.74
Step by Step Solution
- Step 1: Write the proportion equation
126,207.72 : 189,306.99 = 51,325.74 : x - Step 2: Convert to fraction form
126,207.72/189,306.99 = 51,325.74/x - Step 3: Cross multiply
126,207.72x = 189,306.99 × 51,325.74 - Step 4: Simplify right side
126,207.72x = 9,716,321,348.92 - Step 5: Solve for x
x = 9,716,321,348.92/126,207.72 - Step 6: Final answer
x = 76,986.74
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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.