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Finding the Third Proportional to 79,930 and 119,345

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Solution

The third proportional to 79,930 and 119,345 is: 178,196.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,930 : 119,345 = 119,345 : x
  2. Step 2: Convert to fraction form
    79,930/119,345 = 119,345/x
  3. Step 3: Cross multiply
    79,930x = 119,345 × 119,345
  4. Step 4: Simplify right side
    79,930x = 14,243,229,025
  5. Step 5: Solve for x
    x = 14,243,229,025/79,930
  6. Step 6: Final answer
    x = 178,196.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.