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Finding the Third Proportional to 75,918 and 166,138

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Solution

The third proportional to 75,918 and 166,138 is: 363,574.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,918 : 166,138 = 166,138 : x
  2. Step 2: Convert to fraction form
    75,918/166,138 = 166,138/x
  3. Step 3: Cross multiply
    75,918x = 166,138 × 166,138
  4. Step 4: Simplify right side
    75,918x = 27,601,835,044
  5. Step 5: Solve for x
    x = 27,601,835,044/75,918
  6. Step 6: Final answer
    x = 363,574.32

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.