Home / 188,691.27-260,400.38-108,134.34

Finding the Fourth Proportional to 188,691.27, 260,400.38 and 108,134.34

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Solution

The fourth proportional to 188,691.27, 260,400.38 and 108,134.34 is: 149,229.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,691.27 : 260,400.38 = 108,134.34 : x
  2. Step 2: Convert to fraction form
    188,691.27/260,400.38 = 108,134.34/x
  3. Step 3: Cross multiply
    188,691.27x = 260,400.38 × 108,134.34
  4. Step 4: Simplify right side
    188,691.27x = 28,158,222,686.38
  5. Step 5: Solve for x
    x = 28,158,222,686.38/188,691.27
  6. Step 6: Final answer
    x = 149,229.07

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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.