Finding the Third Proportional to 87,672.38 and 128,226.80
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Solution
The third proportional to 87,672.38 and 128,226.80 is: 187,540.39
Step by Step Solution
- Step 1: Write the proportion equation
87,672.38 : 128,226.80 = 128,226.80 : x - Step 2: Convert to fraction form
87,672.38/128,226.80 = 128,226.80/x - Step 3: Cross multiply
87,672.38x = 128,226.80 × 128,226.80 - Step 4: Simplify right side
87,672.38x = 16,442,111,436.82 - Step 5: Solve for x
x = 16,442,111,436.82/87,672.38 - Step 6: Final answer
x = 187,540.39
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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.