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Finding the Third Proportional to 66,706 and 140,916

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Solution

The third proportional to 66,706 and 140,916 is: 297,684.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,706 : 140,916 = 140,916 : x
  2. Step 2: Convert to fraction form
    66,706/140,916 = 140,916/x
  3. Step 3: Cross multiply
    66,706x = 140,916 × 140,916
  4. Step 4: Simplify right side
    66,706x = 19,857,319,056
  5. Step 5: Solve for x
    x = 19,857,319,056/66,706
  6. Step 6: Final answer
    x = 297,684.15

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.