Home / 189,338.10-261,299.25-108,791.70

Finding the Fourth Proportional to 189,338.10, 261,299.25 and 108,791.70

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Solution

The fourth proportional to 189,338.10, 261,299.25 and 108,791.70 is: 150,139.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,338.10 : 261,299.25 = 108,791.70 : x
  2. Step 2: Convert to fraction form
    189,338.10/261,299.25 = 108,791.70/x
  3. Step 3: Cross multiply
    189,338.10x = 261,299.25 × 108,791.70
  4. Step 4: Simplify right side
    189,338.10x = 28,427,189,616.23
  5. Step 5: Solve for x
    x = 28,427,189,616.23/189,338.10
  6. Step 6: Final answer
    x = 150,139.83

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1.5x scale

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.