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Finding the Third Proportional to 75,612 and 111,693.75

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Solution

The third proportional to 75,612 and 111,693.75 is: 164,993.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,612 : 111,693.75 = 111,693.75 : x
  2. Step 2: Convert to fraction form
    75,612/111,693.75 = 111,693.75/x
  3. Step 3: Cross multiply
    75,612x = 111,693.75 × 111,693.75
  4. Step 4: Simplify right side
    75,612x = 12,475,493,789.06
  5. Step 5: Solve for x
    x = 12,475,493,789.06/75,612
  6. Step 6: Final answer
    x = 164,993.57

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.