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Finding the Third Proportional to 121,794 and 191,105

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Solution

The third proportional to 121,794 and 191,105 is: 299,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,794 : 191,105 = 191,105 : x
  2. Step 2: Convert to fraction form
    121,794/191,105 = 191,105/x
  3. Step 3: Cross multiply
    121,794x = 191,105 × 191,105
  4. Step 4: Simplify right side
    121,794x = 36,521,121,025
  5. Step 5: Solve for x
    x = 36,521,121,025/121,794
  6. Step 6: Final answer
    x = 299,859.77

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.