Finding the Fourth Proportional to 126,502.44, 189,731.68 and 47,617.28
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Solution
The fourth proportional to 126,502.44, 189,731.68 and 47,617.28 is: 71,417.65
Step by Step Solution
- Step 1: Write the proportion equation
126,502.44 : 189,731.68 = 47,617.28 : x - Step 2: Convert to fraction form
126,502.44/189,731.68 = 47,617.28/x - Step 3: Cross multiply
126,502.44x = 189,731.68 × 47,617.28 - Step 4: Simplify right side
126,502.44x = 9,034,506,531.43 - Step 5: Solve for x
x = 9,034,506,531.43/126,502.44 - Step 6: Final answer
x = 71,417.65
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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.