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Finding the Third Proportional to 123,198.75 and 136,158.75

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Solution

The third proportional to 123,198.75 and 136,158.75 is: 150,482.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,198.75 : 136,158.75 = 136,158.75 : x
  2. Step 2: Convert to fraction form
    123,198.75/136,158.75 = 136,158.75/x
  3. Step 3: Cross multiply
    123,198.75x = 136,158.75 × 136,158.75
  4. Step 4: Simplify right side
    123,198.75x = 18,539,205,201.56
  5. Step 5: Solve for x
    x = 18,539,205,201.56/123,198.75
  6. Step 6: Final answer
    x = 150,482.09

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Why These Related Problems?

These problems maintain the same ratio (1.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.