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Finding the Third Proportional to 78,828 and 117,966

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Solution

The third proportional to 78,828 and 117,966 is: 176,535.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,828 : 117,966 = 117,966 : x
  2. Step 2: Convert to fraction form
    78,828/117,966 = 117,966/x
  3. Step 3: Cross multiply
    78,828x = 117,966 × 117,966
  4. Step 4: Simplify right side
    78,828x = 13,915,977,156
  5. Step 5: Solve for x
    x = 13,915,977,156/78,828
  6. Step 6: Final answer
    x = 176,535.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.