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Finding the Third Proportional to 79,122 and 121,035

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Solution

The third proportional to 79,122 and 121,035 is: 185,150.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,122 : 121,035 = 121,035 : x
  2. Step 2: Convert to fraction form
    79,122/121,035 = 121,035/x
  3. Step 3: Cross multiply
    79,122x = 121,035 × 121,035
  4. Step 4: Simplify right side
    79,122x = 14,649,471,225
  5. Step 5: Solve for x
    x = 14,649,471,225/79,122
  6. Step 6: Final answer
    x = 185,150.42

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.