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Finding the Third Proportional to 106,869 and 166,137

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Solution

The third proportional to 106,869 and 166,137 is: 258,274.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,869 : 166,137 = 166,137 : x
  2. Step 2: Convert to fraction form
    106,869/166,137 = 166,137/x
  3. Step 3: Cross multiply
    106,869x = 166,137 × 166,137
  4. Step 4: Simplify right side
    106,869x = 27,601,502,769
  5. Step 5: Solve for x
    x = 27,601,502,769/106,869
  6. Step 6: Final answer
    x = 258,274.17

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.