Finding the Fourth Proportional to 126,439.92, 189,687.52 and 47,554.08
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Solution
The fourth proportional to 126,439.92, 189,687.52 and 47,554.08 is: 71,341.52
Step by Step Solution
- Step 1: Write the proportion equation
126,439.92 : 189,687.52 = 47,554.08 : x - Step 2: Convert to fraction form
126,439.92/189,687.52 = 47,554.08/x - Step 3: Cross multiply
126,439.92x = 189,687.52 × 47,554.08 - Step 4: Simplify right side
126,439.92x = 9,020,415,501.08 - Step 5: Solve for x
x = 9,020,415,501.08/126,439.92 - Step 6: Final answer
x = 71,341.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.