Home / 198,192.11-297,333.57-85,891.19

Finding the Fourth Proportional to 198,192.11, 297,333.57 and 85,891.19

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Solution

The fourth proportional to 198,192.11, 297,333.57 and 85,891.19 is: 128,856.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,192.11 : 297,333.57 = 85,891.19 : x
  2. Step 2: Convert to fraction form
    198,192.11/297,333.57 = 85,891.19/x
  3. Step 3: Cross multiply
    198,192.11x = 297,333.57 × 85,891.19
  4. Step 4: Simplify right side
    198,192.11x = 25,538,332,667.58
  5. Step 5: Solve for x
    x = 25,538,332,667.58/198,192.11
  6. Step 6: Final answer
    x = 128,856.46

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1.5x scale

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.