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Finding the Third Proportional to 109,494 and 143,775

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Solution

The third proportional to 109,494 and 143,775 is: 188,788.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,494 : 143,775 = 143,775 : x
  2. Step 2: Convert to fraction form
    109,494/143,775 = 143,775/x
  3. Step 3: Cross multiply
    109,494x = 143,775 × 143,775
  4. Step 4: Simplify right side
    109,494x = 20,671,250,625
  5. Step 5: Solve for x
    x = 20,671,250,625/109,494
  6. Step 6: Final answer
    x = 188,788.89

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.