Home / 198,422.88-273,826.56-107,780.64

Finding the Fourth Proportional to 198,422.88, 273,826.56 and 107,780.64

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Solution

The fourth proportional to 198,422.88, 273,826.56 and 107,780.64 is: 148,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,422.88 : 273,826.56 = 107,780.64 : x
  2. Step 2: Convert to fraction form
    198,422.88/273,826.56 = 107,780.64/x
  3. Step 3: Cross multiply
    198,422.88x = 273,826.56 × 107,780.64
  4. Step 4: Simplify right side
    198,422.88x = 29,513,201,885.80
  5. Step 5: Solve for x
    x = 29,513,201,885.80/198,422.88
  6. Step 6: Final answer
    x = 148,738.90

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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.