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Finding the Third Proportional to 121,100 and 179,922

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Solution

The third proportional to 121,100 and 179,922 is: 267,315.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,100 : 179,922 = 179,922 : x
  2. Step 2: Convert to fraction form
    121,100/179,922 = 179,922/x
  3. Step 3: Cross multiply
    121,100x = 179,922 × 179,922
  4. Step 4: Simplify right side
    121,100x = 32,371,926,084
  5. Step 5: Solve for x
    x = 32,371,926,084/121,100
  6. Step 6: Final answer
    x = 267,315.66

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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.