Home / 213,531.20-320,037.60-95,076.80

Finding the Fourth Proportional to 213,531.20, 320,037.60 and 95,076.80

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Solution

The fourth proportional to 213,531.20, 320,037.60 and 95,076.80 is: 142,499.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,531.20 : 320,037.60 = 95,076.80 : x
  2. Step 2: Convert to fraction form
    213,531.20/320,037.60 = 95,076.80/x
  3. Step 3: Cross multiply
    213,531.20x = 320,037.60 × 95,076.80
  4. Step 4: Simplify right side
    213,531.20x = 30,428,150,887.68
  5. Step 5: Solve for x
    x = 30,428,150,887.68/213,531.20
  6. Step 6: Final answer
    x = 142,499.79

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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.