Home / 213,976.26-320,898.51-80,919.18

Finding the Fourth Proportional to 213,976.26, 320,898.51 and 80,919.18

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Solution

The fourth proportional to 213,976.26, 320,898.51 and 80,919.18 is: 121,353.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,976.26 : 320,898.51 = 80,919.18 : x
  2. Step 2: Convert to fraction form
    213,976.26/320,898.51 = 80,919.18/x
  3. Step 3: Cross multiply
    213,976.26x = 320,898.51 × 80,919.18
  4. Step 4: Simplify right side
    213,976.26x = 25,966,844,292.42
  5. Step 5: Solve for x
    x = 25,966,844,292.42/213,976.26
  6. Step 6: Final answer
    x = 121,353.86

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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.