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Finding the Third Proportional to 81,957 and 166,921.50

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Solution

The third proportional to 81,957 and 166,921.50 is: 339,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,957 : 166,921.50 = 166,921.50 : x
  2. Step 2: Convert to fraction form
    81,957/166,921.50 = 166,921.50/x
  3. Step 3: Cross multiply
    81,957x = 166,921.50 × 166,921.50
  4. Step 4: Simplify right side
    81,957x = 27,862,787,162.25
  5. Step 5: Solve for x
    x = 27,862,787,162.25/81,957
  6. Step 6: Final answer
    x = 339,968.36

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.