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Finding the Third Proportional to 129,035 and 189,756

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Solution

The third proportional to 129,035 and 189,756 is: 279,050.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,035 : 189,756 = 189,756 : x
  2. Step 2: Convert to fraction form
    129,035/189,756 = 189,756/x
  3. Step 3: Cross multiply
    129,035x = 189,756 × 189,756
  4. Step 4: Simplify right side
    129,035x = 36,007,339,536
  5. Step 5: Solve for x
    x = 36,007,339,536/129,035
  6. Step 6: Final answer
    x = 279,050.95

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.