Finding the Third Proportional to 81,837.84 and 126,132.19
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Solution
The third proportional to 81,837.84 and 126,132.19 is: 194,400.63
Step by Step Solution
- Step 1: Write the proportion equation
81,837.84 : 126,132.19 = 126,132.19 : x - Step 2: Convert to fraction form
81,837.84/126,132.19 = 126,132.19/x - Step 3: Cross multiply
81,837.84x = 126,132.19 × 126,132.19 - Step 4: Simplify right side
81,837.84x = 15,909,328,723.54 - Step 5: Solve for x
x = 15,909,328,723.54/81,837.84 - Step 6: Final answer
x = 194,400.63
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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.