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Finding the Third Proportional to 61,149 and 124,890

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Solution

The third proportional to 61,149 and 124,890 is: 255,073.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,149 : 124,890 = 124,890 : x
  2. Step 2: Convert to fraction form
    61,149/124,890 = 124,890/x
  3. Step 3: Cross multiply
    61,149x = 124,890 × 124,890
  4. Step 4: Simplify right side
    61,149x = 15,597,512,100
  5. Step 5: Solve for x
    x = 15,597,512,100/61,149
  6. Step 6: Final answer
    x = 255,073.87

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.