Finding the Third Proportional to 81,126.75 and 121,014.75
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Solution
The third proportional to 81,126.75 and 121,014.75 is: 180,514.68
Step by Step Solution
- Step 1: Write the proportion equation
81,126.75 : 121,014.75 = 121,014.75 : x - Step 2: Convert to fraction form
81,126.75/121,014.75 = 121,014.75/x - Step 3: Cross multiply
81,126.75x = 121,014.75 × 121,014.75 - Step 4: Simplify right side
81,126.75x = 14,644,569,717.56 - Step 5: Solve for x
x = 14,644,569,717.56/81,126.75 - Step 6: Final answer
x = 180,514.68
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.