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Finding the Third Proportional to 79,869 and 121,261.50

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Solution

The third proportional to 79,869 and 121,261.50 is: 184,105.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,869 : 121,261.50 = 121,261.50 : x
  2. Step 2: Convert to fraction form
    79,869/121,261.50 = 121,261.50/x
  3. Step 3: Cross multiply
    79,869x = 121,261.50 × 121,261.50
  4. Step 4: Simplify right side
    79,869x = 14,704,351,382.25
  5. Step 5: Solve for x
    x = 14,704,351,382.25/79,869
  6. Step 6: Final answer
    x = 184,105.87

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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.