Finding the Third Proportional to 87,675.75 and 128,229.75
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Solution
The third proportional to 87,675.75 and 128,229.75 is: 187,541.81
Step by Step Solution
- Step 1: Write the proportion equation
87,675.75 : 128,229.75 = 128,229.75 : x - Step 2: Convert to fraction form
87,675.75/128,229.75 = 128,229.75/x - Step 3: Cross multiply
87,675.75x = 128,229.75 × 128,229.75 - Step 4: Simplify right side
87,675.75x = 16,442,868,785.06 - Step 5: Solve for x
x = 16,442,868,785.06/87,675.75 - Step 6: Final answer
x = 187,541.81
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Why These Related Problems?
These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.