Home / 263,605.13-395,141.43-103,793.20

Finding the Fourth Proportional to 263,605.13, 395,141.43 and 103,793.20

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Solution

The fourth proportional to 263,605.13, 395,141.43 and 103,793.20 is: 155,584.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,605.13 : 395,141.43 = 103,793.20 : x
  2. Step 2: Convert to fraction form
    263,605.13/395,141.43 = 103,793.20/x
  3. Step 3: Cross multiply
    263,605.13x = 395,141.43 × 103,793.20
  4. Step 4: Simplify right side
    263,605.13x = 41,012,990,977.60
  5. Step 5: Solve for x
    x = 41,012,990,977.60/263,605.13
  6. Step 6: Final answer
    x = 155,584.95

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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.