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Finding the Third Proportional to 81,035 and 122,672

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Solution

The third proportional to 81,035 and 122,672 is: 185,702.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,035 : 122,672 = 122,672 : x
  2. Step 2: Convert to fraction form
    81,035/122,672 = 122,672/x
  3. Step 3: Cross multiply
    81,035x = 122,672 × 122,672
  4. Step 4: Simplify right side
    81,035x = 15,048,419,584
  5. Step 5: Solve for x
    x = 15,048,419,584/81,035
  6. Step 6: Final answer
    x = 185,702.72

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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.