Home / 213,435.41-320,141.57-108,251.64

Finding the Fourth Proportional to 213,435.41, 320,141.57 and 108,251.64

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Solution

The fourth proportional to 213,435.41, 320,141.57 and 108,251.64 is: 162,371.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,435.41 : 320,141.57 = 108,251.64 : x
  2. Step 2: Convert to fraction form
    213,435.41/320,141.57 = 108,251.64/x
  3. Step 3: Cross multiply
    213,435.41x = 320,141.57 × 108,251.64
  4. Step 4: Simplify right side
    213,435.41x = 34,655,849,443.42
  5. Step 5: Solve for x
    x = 34,655,849,443.42/213,435.41
  6. Step 6: Final answer
    x = 162,371.61

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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.