Finding the Third Proportional to 83,031.38 and 128,229.75
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Solution
The third proportional to 83,031.38 and 128,229.75 is: 198,031.99
Step by Step Solution
- Step 1: Write the proportion equation
83,031.38 : 128,229.75 = 128,229.75 : x - Step 2: Convert to fraction form
83,031.38/128,229.75 = 128,229.75/x - Step 3: Cross multiply
83,031.38x = 128,229.75 × 128,229.75 - Step 4: Simplify right side
83,031.38x = 16,442,868,785.06 - Step 5: Solve for x
x = 16,442,868,785.06/83,031.38 - Step 6: Final answer
x = 198,031.99
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Why These Related Problems?
These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.