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Finding the Third Proportional to 81,016 and 122,604

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Solution

The third proportional to 81,016 and 122,604 is: 185,540.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,016 : 122,604 = 122,604 : x
  2. Step 2: Convert to fraction form
    81,016/122,604 = 122,604/x
  3. Step 3: Cross multiply
    81,016x = 122,604 × 122,604
  4. Step 4: Simplify right side
    81,016x = 15,031,740,816
  5. Step 5: Solve for x
    x = 15,031,740,816/81,016
  6. Step 6: Final answer
    x = 185,540.40

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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.