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Finding the Third Proportional to 39,702 and 79,404

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Solution

The third proportional to 39,702 and 79,404 is: 158,808

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,702 : 79,404 = 79,404 : x
  2. Step 2: Convert to fraction form
    39,702/79,404 = 79,404/x
  3. Step 3: Cross multiply
    39,702x = 79,404 × 79,404
  4. Step 4: Simplify right side
    39,702x = 6,304,995,216
  5. Step 5: Solve for x
    x = 6,304,995,216/39,702
  6. Step 6: Final answer
    x = 158,808

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Why These Related Problems?

These problems maintain the same ratio (2) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.