Home / 213,286.16-319,987.68-93,321.36

Finding the Fourth Proportional to 213,286.16, 319,987.68 and 93,321.36

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Solution

The fourth proportional to 213,286.16, 319,987.68 and 93,321.36 is: 140,007.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,286.16 : 319,987.68 = 93,321.36 : x
  2. Step 2: Convert to fraction form
    213,286.16/319,987.68 = 93,321.36/x
  3. Step 3: Cross multiply
    213,286.16x = 319,987.68 × 93,321.36
  4. Step 4: Simplify right side
    213,286.16x = 29,861,684,447.57
  5. Step 5: Solve for x
    x = 29,861,684,447.57/213,286.16
  6. Step 6: Final answer
    x = 140,007.61

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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.