Finding the Third Proportional to 81,658.13 and 130,020.19
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Solution
The third proportional to 81,658.13 and 130,020.19 is: 207,024.70
Step by Step Solution
- Step 1: Write the proportion equation
81,658.13 : 130,020.19 = 130,020.19 : x - Step 2: Convert to fraction form
81,658.13/130,020.19 = 130,020.19/x - Step 3: Cross multiply
81,658.13x = 130,020.19 × 130,020.19 - Step 4: Simplify right side
81,658.13x = 16,905,249,157.54 - Step 5: Solve for x
x = 16,905,249,157.54/81,658.13 - Step 6: Final answer
x = 207,024.70
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Why These Related Problems?
These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.