Finding the Third Proportional to 86,239.69 and 130,129.03
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Solution
The third proportional to 86,239.69 and 130,129.03 is: 196,354.66
Step by Step Solution
- Step 1: Write the proportion equation
86,239.69 : 130,129.03 = 130,129.03 : x - Step 2: Convert to fraction form
86,239.69/130,129.03 = 130,129.03/x - Step 3: Cross multiply
86,239.69x = 130,129.03 × 130,129.03 - Step 4: Simplify right side
86,239.69x = 16,933,564,774.06 - Step 5: Solve for x
x = 16,933,564,774.06/86,239.69 - Step 6: Final answer
x = 196,354.66
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.