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Finding the Third Proportional to 80,059 and 171,989.75

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Solution

The third proportional to 80,059 and 171,989.75 is: 369,483.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,059 : 171,989.75 = 171,989.75 : x
  2. Step 2: Convert to fraction form
    80,059/171,989.75 = 171,989.75/x
  3. Step 3: Cross multiply
    80,059x = 171,989.75 × 171,989.75
  4. Step 4: Simplify right side
    80,059x = 29,580,474,105.06
  5. Step 5: Solve for x
    x = 29,580,474,105.06/80,059
  6. Step 6: Final answer
    x = 369,483.43

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.