Finding the Fourth Proportional to 126,502.44, 189,731.70 and 47,617.26
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Solution
The fourth proportional to 126,502.44, 189,731.70 and 47,617.26 is: 71,417.62
Step by Step Solution
- Step 1: Write the proportion equation
126,502.44 : 189,731.70 = 47,617.26 : x - Step 2: Convert to fraction form
126,502.44/189,731.70 = 47,617.26/x - Step 3: Cross multiply
126,502.44x = 189,731.70 × 47,617.26 - Step 4: Simplify right side
126,502.44x = 9,034,503,689.14 - Step 5: Solve for x
x = 9,034,503,689.14/126,502.44 - Step 6: Final answer
x = 71,417.62
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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.