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Finding the Third Proportional to 69,286.50 and 111,579.75

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Solution

The third proportional to 69,286.50 and 111,579.75 is: 179,689.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,286.50 : 111,579.75 = 111,579.75 : x
  2. Step 2: Convert to fraction form
    69,286.50/111,579.75 = 111,579.75/x
  3. Step 3: Cross multiply
    69,286.50x = 111,579.75 × 111,579.75
  4. Step 4: Simplify right side
    69,286.50x = 12,450,040,610.06
  5. Step 5: Solve for x
    x = 12,450,040,610.06/69,286.50
  6. Step 6: Final answer
    x = 179,689.27

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Why These Related Problems?

These problems maintain the same ratio (1.61) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.