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Finding the Third Proportional to 65,679 and 101,880

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Solution

The third proportional to 65,679 and 101,880 is: 158,034.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,679 : 101,880 = 101,880 : x
  2. Step 2: Convert to fraction form
    65,679/101,880 = 101,880/x
  3. Step 3: Cross multiply
    65,679x = 101,880 × 101,880
  4. Step 4: Simplify right side
    65,679x = 10,379,534,400
  5. Step 5: Solve for x
    x = 10,379,534,400/65,679
  6. Step 6: Final answer
    x = 158,034.29

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.