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Finding the Third Proportional to 66,967 and 146,781

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Solution

The third proportional to 66,967 and 146,781 is: 321,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,967 : 146,781 = 146,781 : x
  2. Step 2: Convert to fraction form
    66,967/146,781 = 146,781/x
  3. Step 3: Cross multiply
    66,967x = 146,781 × 146,781
  4. Step 4: Simplify right side
    66,967x = 21,544,661,961
  5. Step 5: Solve for x
    x = 21,544,661,961/66,967
  6. Step 6: Final answer
    x = 321,720.58

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.