Finding the Fourth Proportional to 126,979.68, 175,229.28 and 73,260.48
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Solution
The fourth proportional to 126,979.68, 175,229.28 and 73,260.48 is: 101,097.92
Step by Step Solution
- Step 1: Write the proportion equation
126,979.68 : 175,229.28 = 73,260.48 : x - Step 2: Convert to fraction form
126,979.68/175,229.28 = 73,260.48/x - Step 3: Cross multiply
126,979.68x = 175,229.28 × 73,260.48 - Step 4: Simplify right side
126,979.68x = 12,837,381,162.85 - Step 5: Solve for x
x = 12,837,381,162.85/126,979.68 - Step 6: Final answer
x = 101,097.92
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.