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Finding the Third Proportional to 65,839 and 100,379

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Solution

The third proportional to 65,839 and 100,379 is: 153,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,839 : 100,379 = 100,379 : x
  2. Step 2: Convert to fraction form
    65,839/100,379 = 100,379/x
  3. Step 3: Cross multiply
    65,839x = 100,379 × 100,379
  4. Step 4: Simplify right side
    65,839x = 10,075,943,641
  5. Step 5: Solve for x
    x = 10,075,943,641/65,839
  6. Step 6: Final answer
    x = 153,039.14

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.