Home / 198,206.38-297,354.96-85,905.46

Finding the Fourth Proportional to 198,206.38, 297,354.96 and 85,905.46

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Solution

The fourth proportional to 198,206.38, 297,354.96 and 85,905.46 is: 128,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,206.38 : 297,354.96 = 85,905.46 : x
  2. Step 2: Convert to fraction form
    198,206.38/297,354.96 = 85,905.46/x
  3. Step 3: Cross multiply
    198,206.38x = 297,354.96 × 85,905.46
  4. Step 4: Simplify right side
    198,206.38x = 25,544,414,622.08
  5. Step 5: Solve for x
    x = 25,544,414,622.08/198,206.38
  6. Step 6: Final answer
    x = 128,877.86

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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.