Home / 187,806.28-259,174.66-102,921.48

Finding the Fourth Proportional to 187,806.28, 259,174.66 and 102,921.48

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Solution

The fourth proportional to 187,806.28, 259,174.66 and 102,921.48 is: 142,032.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,806.28 : 259,174.66 = 102,921.48 : x
  2. Step 2: Convert to fraction form
    187,806.28/259,174.66 = 102,921.48/x
  3. Step 3: Cross multiply
    187,806.28x = 259,174.66 × 102,921.48
  4. Step 4: Simplify right side
    187,806.28x = 26,674,639,585.70
  5. Step 5: Solve for x
    x = 26,674,639,585.70/187,806.28
  6. Step 6: Final answer
    x = 142,032.73

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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.