Home / 198,422.88-273,826.53-107,780.61

Finding the Fourth Proportional to 198,422.88, 273,826.53 and 107,780.61

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Solution

The fourth proportional to 198,422.88, 273,826.53 and 107,780.61 is: 148,738.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,422.88 : 273,826.53 = 107,780.61 : x
  2. Step 2: Convert to fraction form
    198,422.88/273,826.53 = 107,780.61/x
  3. Step 3: Cross multiply
    198,422.88x = 273,826.53 × 107,780.61
  4. Step 4: Simplify right side
    198,422.88x = 29,513,190,437.58
  5. Step 5: Solve for x
    x = 29,513,190,437.58/198,422.88
  6. Step 6: Final answer
    x = 148,738.85

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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.