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Finding the Third Proportional to 65,749 and 106,820

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Solution

The third proportional to 65,749 and 106,820 is: 173,546.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,749 : 106,820 = 106,820 : x
  2. Step 2: Convert to fraction form
    65,749/106,820 = 106,820/x
  3. Step 3: Cross multiply
    65,749x = 106,820 × 106,820
  4. Step 4: Simplify right side
    65,749x = 11,410,512,400
  5. Step 5: Solve for x
    x = 11,410,512,400/65,749
  6. Step 6: Final answer
    x = 173,546.55

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.