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Finding the Third Proportional to 66,812.34 and 144,067.78

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Solution

The third proportional to 66,812.34 and 144,067.78 is: 310,654.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,812.34 : 144,067.78 = 144,067.78 : x
  2. Step 2: Convert to fraction form
    66,812.34/144,067.78 = 144,067.78/x
  3. Step 3: Cross multiply
    66,812.34x = 144,067.78 × 144,067.78
  4. Step 4: Simplify right side
    66,812.34x = 20,755,525,594.30
  5. Step 5: Solve for x
    x = 20,755,525,594.30/66,812.34
  6. Step 6: Final answer
    x = 310,654.06

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These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.