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Finding the Third Proportional to 81,738 and 124,983

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Solution

The third proportional to 81,738 and 124,983 is: 191,107.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,738 : 124,983 = 124,983 : x
  2. Step 2: Convert to fraction form
    81,738/124,983 = 124,983/x
  3. Step 3: Cross multiply
    81,738x = 124,983 × 124,983
  4. Step 4: Simplify right side
    81,738x = 15,620,750,289
  5. Step 5: Solve for x
    x = 15,620,750,289/81,738
  6. Step 6: Final answer
    x = 191,107.57

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.