Home / 213,338.82-320,183.19-108,187.86

Finding the Fourth Proportional to 213,338.82, 320,183.19 and 108,187.86

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Solution

The fourth proportional to 213,338.82, 320,183.19 and 108,187.86 is: 162,370.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,338.82 : 320,183.19 = 108,187.86 : x
  2. Step 2: Convert to fraction form
    213,338.82/320,183.19 = 108,187.86/x
  3. Step 3: Cross multiply
    213,338.82x = 320,183.19 × 108,187.86
  4. Step 4: Simplify right side
    213,338.82x = 34,639,934,134.07
  5. Step 5: Solve for x
    x = 34,639,934,134.07/213,338.82
  6. Step 6: Final answer
    x = 162,370.52

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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.