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Finding the Third Proportional to 74,961 and 161,039

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Solution

The third proportional to 74,961 and 161,039 is: 345,960.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,961 : 161,039 = 161,039 : x
  2. Step 2: Convert to fraction form
    74,961/161,039 = 161,039/x
  3. Step 3: Cross multiply
    74,961x = 161,039 × 161,039
  4. Step 4: Simplify right side
    74,961x = 25,933,559,521
  5. Step 5: Solve for x
    x = 25,933,559,521/74,961
  6. Step 6: Final answer
    x = 345,960.69

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.