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Finding the Third Proportional to 79,869 and 121,262

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Solution

The third proportional to 79,869 and 121,262 is: 184,107.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,869 : 121,262 = 121,262 : x
  2. Step 2: Convert to fraction form
    79,869/121,262 = 121,262/x
  3. Step 3: Cross multiply
    79,869x = 121,262 × 121,262
  4. Step 4: Simplify right side
    79,869x = 14,704,472,644
  5. Step 5: Solve for x
    x = 14,704,472,644/79,869
  6. Step 6: Final answer
    x = 184,107.38

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.