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Finding the Third Proportional to 66,614 and 143,110

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Solution

The third proportional to 66,614 and 143,110 is: 307,449.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,614 : 143,110 = 143,110 : x
  2. Step 2: Convert to fraction form
    66,614/143,110 = 143,110/x
  3. Step 3: Cross multiply
    66,614x = 143,110 × 143,110
  4. Step 4: Simplify right side
    66,614x = 20,480,472,100
  5. Step 5: Solve for x
    x = 20,480,472,100/66,614
  6. Step 6: Final answer
    x = 307,449.97

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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.