Home / 213,317.47-320,023.92-80,198.88

Finding the Fourth Proportional to 213,317.47, 320,023.92 and 80,198.88

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Solution

The fourth proportional to 213,317.47, 320,023.92 and 80,198.88 is: 120,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,317.47 : 320,023.92 = 80,198.88 : x
  2. Step 2: Convert to fraction form
    213,317.47/320,023.92 = 80,198.88/x
  3. Step 3: Cross multiply
    213,317.47x = 320,023.92 × 80,198.88
  4. Step 4: Simplify right side
    213,317.47x = 25,665,558,657.84
  5. Step 5: Solve for x
    x = 25,665,558,657.84/213,317.47
  6. Step 6: Final answer
    x = 120,316.26

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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.