Home / 213,276.91-320,112.17-108,169.69

Finding the Fourth Proportional to 213,276.91, 320,112.17 and 108,169.69

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Solution

The fourth proportional to 213,276.91, 320,112.17 and 108,169.69 is: 162,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,276.91 : 320,112.17 = 108,169.69 : x
  2. Step 2: Convert to fraction form
    213,276.91/320,112.17 = 108,169.69/x
  3. Step 3: Cross multiply
    213,276.91x = 320,112.17 × 108,169.69
  4. Step 4: Simplify right side
    213,276.91x = 34,626,434,194.13
  5. Step 5: Solve for x
    x = 34,626,434,194.13/213,276.91
  6. Step 6: Final answer
    x = 162,354.35

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1.5x scale

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.