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Finding the Third Proportional to 86,569 and 130,425

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Solution

The third proportional to 86,569 and 130,425 is: 196,498.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,569 : 130,425 = 130,425 : x
  2. Step 2: Convert to fraction form
    86,569/130,425 = 130,425/x
  3. Step 3: Cross multiply
    86,569x = 130,425 × 130,425
  4. Step 4: Simplify right side
    86,569x = 17,010,680,625
  5. Step 5: Solve for x
    x = 17,010,680,625/86,569
  6. Step 6: Final answer
    x = 196,498.52

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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.