Home / 213,275.91-320,110.67-108,168.69

Finding the Fourth Proportional to 213,275.91, 320,110.67 and 108,168.69

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Solution

The fourth proportional to 213,275.91, 320,110.67 and 108,168.69 is: 162,352.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,275.91 : 320,110.67 = 108,168.69 : x
  2. Step 2: Convert to fraction form
    213,275.91/320,110.67 = 108,168.69/x
  3. Step 3: Cross multiply
    213,275.91x = 320,110.67 × 108,168.69
  4. Step 4: Simplify right side
    213,275.91x = 34,625,951,288.08
  5. Step 5: Solve for x
    x = 34,625,951,288.08/213,275.91
  6. Step 6: Final answer
    x = 162,352.85

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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.