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Finding the Third Proportional to 87,756 and 171,138

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Solution

The third proportional to 87,756 and 171,138 is: 333,746.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756 : 171,138 = 171,138 : x
  2. Step 2: Convert to fraction form
    87,756/171,138 = 171,138/x
  3. Step 3: Cross multiply
    87,756x = 171,138 × 171,138
  4. Step 4: Simplify right side
    87,756x = 29,288,215,044
  5. Step 5: Solve for x
    x = 29,288,215,044/87,756
  6. Step 6: Final answer
    x = 333,746.01

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.