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Finding the Third Proportional to 109,134 and 165,321

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Solution

The third proportional to 109,134 and 165,321 is: 250,435.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,134 : 165,321 = 165,321 : x
  2. Step 2: Convert to fraction form
    109,134/165,321 = 165,321/x
  3. Step 3: Cross multiply
    109,134x = 165,321 × 165,321
  4. Step 4: Simplify right side
    109,134x = 27,331,033,041
  5. Step 5: Solve for x
    x = 27,331,033,041/109,134
  6. Step 6: Final answer
    x = 250,435.55

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.