Home / 198,139.19-273,432.05-113,258.08

Finding the Fourth Proportional to 198,139.19, 273,432.05 and 113,258.08

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Solution

The fourth proportional to 198,139.19, 273,432.05 and 113,258.08 is: 156,296.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,139.19 : 273,432.05 = 113,258.08 : x
  2. Step 2: Convert to fraction form
    198,139.19/273,432.05 = 113,258.08/x
  3. Step 3: Cross multiply
    198,139.19x = 273,432.05 × 113,258.08
  4. Step 4: Simplify right side
    198,139.19x = 30,968,387,626.30
  5. Step 5: Solve for x
    x = 30,968,387,626.30/198,139.19
  6. Step 6: Final answer
    x = 156,296.13

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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.