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Finding the Third Proportional to 66,706 and 100,605

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Solution

The third proportional to 66,706 and 100,605 is: 151,730.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,706 : 100,605 = 100,605 : x
  2. Step 2: Convert to fraction form
    66,706/100,605 = 100,605/x
  3. Step 3: Cross multiply
    66,706x = 100,605 × 100,605
  4. Step 4: Simplify right side
    66,706x = 10,121,366,025
  5. Step 5: Solve for x
    x = 10,121,366,025/66,706
  6. Step 6: Final answer
    x = 151,730.97

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.