Home / 187,825.92-259,202.07-102,942.78

Finding the Fourth Proportional to 187,825.92, 259,202.07 and 102,942.78

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Solution

The fourth proportional to 187,825.92, 259,202.07 and 102,942.78 is: 142,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,825.92 : 259,202.07 = 102,942.78 : x
  2. Step 2: Convert to fraction form
    187,825.92/259,202.07 = 102,942.78/x
  3. Step 3: Cross multiply
    187,825.92x = 259,202.07 × 102,942.78
  4. Step 4: Simplify right side
    187,825.92x = 26,682,981,667.55
  5. Step 5: Solve for x
    x = 26,682,981,667.55/187,825.92
  6. Step 6: Final answer
    x = 142,062.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.