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Finding the Third Proportional to 86,565 and 129,502

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Solution

The third proportional to 86,565 and 129,502 is: 193,736.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,565 : 129,502 = 129,502 : x
  2. Step 2: Convert to fraction form
    86,565/129,502 = 129,502/x
  3. Step 3: Cross multiply
    86,565x = 129,502 × 129,502
  4. Step 4: Simplify right side
    86,565x = 16,770,768,004
  5. Step 5: Solve for x
    x = 16,770,768,004/86,565
  6. Step 6: Final answer
    x = 193,736.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.