Finding the Third Proportional to 71,872.50 and 107,979.75
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Solution
The third proportional to 71,872.50 and 107,979.75 is: 162,226.53
Step by Step Solution
- Step 1: Write the proportion equation
71,872.50 : 107,979.75 = 107,979.75 : x - Step 2: Convert to fraction form
71,872.50/107,979.75 = 107,979.75/x - Step 3: Cross multiply
71,872.50x = 107,979.75 × 107,979.75 - Step 4: Simplify right side
71,872.50x = 11,659,626,410.06 - Step 5: Solve for x
x = 11,659,626,410.06/71,872.50 - Step 6: Final answer
x = 162,226.53
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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.