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Finding the Third Proportional to 79,043 and 120,542

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Solution

The third proportional to 79,043 and 120,542 is: 183,828.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,043 : 120,542 = 120,542 : x
  2. Step 2: Convert to fraction form
    79,043/120,542 = 120,542/x
  3. Step 3: Cross multiply
    79,043x = 120,542 × 120,542
  4. Step 4: Simplify right side
    79,043x = 14,530,373,764
  5. Step 5: Solve for x
    x = 14,530,373,764/79,043
  6. Step 6: Final answer
    x = 183,828.72

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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.