Home / 213,535.20-320,043.60-95,080.80

Finding the Fourth Proportional to 213,535.20, 320,043.60 and 95,080.80

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Solution

The fourth proportional to 213,535.20, 320,043.60 and 95,080.80 is: 142,505.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,535.20 : 320,043.60 = 95,080.80 : x
  2. Step 2: Convert to fraction form
    213,535.20/320,043.60 = 95,080.80/x
  3. Step 3: Cross multiply
    213,535.20x = 320,043.60 × 95,080.80
  4. Step 4: Simplify right side
    213,535.20x = 30,430,001,522.88
  5. Step 5: Solve for x
    x = 30,430,001,522.88/213,535.20
  6. Step 6: Final answer
    x = 142,505.79

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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.