Home / 231,879.16-319,992.76-131,286.52

Finding the Fourth Proportional to 231,879.16, 319,992.76 and 131,286.52

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Solution

The fourth proportional to 231,879.16, 319,992.76 and 131,286.52 is: 181,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,879.16 : 319,992.76 = 131,286.52 : x
  2. Step 2: Convert to fraction form
    231,879.16/319,992.76 = 131,286.52/x
  3. Step 3: Cross multiply
    231,879.16x = 319,992.76 × 131,286.52
  4. Step 4: Simplify right side
    231,879.16x = 42,010,735,885.60
  5. Step 5: Solve for x
    x = 42,010,735,885.60/231,879.16
  6. Step 6: Final answer
    x = 181,175.13

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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.