Home / 213,276.66-320,111.79-108,169.44

Finding the Fourth Proportional to 213,276.66, 320,111.79 and 108,169.44

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Solution

The fourth proportional to 213,276.66, 320,111.79 and 108,169.44 is: 162,353.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,276.66 : 320,111.79 = 108,169.44 : x
  2. Step 2: Convert to fraction form
    213,276.66/320,111.79 = 108,169.44/x
  3. Step 3: Cross multiply
    213,276.66x = 320,111.79 × 108,169.44
  4. Step 4: Simplify right side
    213,276.66x = 34,626,313,061.70
  5. Step 5: Solve for x
    x = 34,626,313,061.70/213,276.66
  6. Step 6: Final answer
    x = 162,353.97

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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.