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Finding the Third Proportional to 66,112.88 and 142,968.38

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Solution

The third proportional to 66,112.88 and 142,968.38 is: 309,167.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,112.88 : 142,968.38 = 142,968.38 : x
  2. Step 2: Convert to fraction form
    66,112.88/142,968.38 = 142,968.38/x
  3. Step 3: Cross multiply
    66,112.88x = 142,968.38 × 142,968.38
  4. Step 4: Simplify right side
    66,112.88x = 20,439,956,250.14
  5. Step 5: Solve for x
    x = 20,439,956,250.14/66,112.88
  6. Step 6: Final answer
    x = 309,167.56

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Why These Related Problems?

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