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Finding the Third Proportional to 79,367 and 107,789

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Solution

The third proportional to 79,367 and 107,789 is: 146,389.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,367 : 107,789 = 107,789 : x
  2. Step 2: Convert to fraction form
    79,367/107,789 = 107,789/x
  3. Step 3: Cross multiply
    79,367x = 107,789 × 107,789
  4. Step 4: Simplify right side
    79,367x = 11,618,468,521
  5. Step 5: Solve for x
    x = 11,618,468,521/79,367
  6. Step 6: Final answer
    x = 146,389.16

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.