Home / 198,380.72-273,765.33-107,736.71

Finding the Fourth Proportional to 198,380.72, 273,765.33 and 107,736.71

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Solution

The fourth proportional to 198,380.72, 273,765.33 and 107,736.71 is: 148,676.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,380.72 : 273,765.33 = 107,736.71 : x
  2. Step 2: Convert to fraction form
    198,380.72/273,765.33 = 107,736.71/x
  3. Step 3: Cross multiply
    198,380.72x = 273,765.33 × 107,736.71
  4. Step 4: Simplify right side
    198,380.72x = 29,494,575,966.26
  5. Step 5: Solve for x
    x = 29,494,575,966.26/198,380.72
  6. Step 6: Final answer
    x = 148,676.63

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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.