Home / 198,499.07-273,930.39-107,855.04

Finding the Fourth Proportional to 198,499.07, 273,930.39 and 107,855.04

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Solution

The fourth proportional to 198,499.07, 273,930.39 and 107,855.04 is: 148,840.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,499.07 : 273,930.39 = 107,855.04 : x
  2. Step 2: Convert to fraction form
    198,499.07/273,930.39 = 107,855.04/x
  3. Step 3: Cross multiply
    198,499.07x = 273,930.39 × 107,855.04
  4. Step 4: Simplify right side
    198,499.07x = 29,544,772,351.02
  5. Step 5: Solve for x
    x = 29,544,772,351.02/198,499.07
  6. Step 6: Final answer
    x = 148,840.86

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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.