Home / 198,947.85-298,412.05-74,279.13

Finding the Fourth Proportional to 198,947.85, 298,412.05 and 74,279.13

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Solution

The fourth proportional to 198,947.85, 298,412.05 and 74,279.13 is: 111,415.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,947.85 : 298,412.05 = 74,279.13 : x
  2. Step 2: Convert to fraction form
    198,947.85/298,412.05 = 74,279.13/x
  3. Step 3: Cross multiply
    198,947.85x = 298,412.05 × 74,279.13
  4. Step 4: Simplify right side
    198,947.85x = 22,165,785,592.06
  5. Step 5: Solve for x
    x = 22,165,785,592.06/198,947.85
  6. Step 6: Final answer
    x = 111,415.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.