Home / 215,835.57-323,556.12-75,517.65

Finding the Fourth Proportional to 215,835.57, 323,556.12 and 75,517.65

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Solution

The fourth proportional to 215,835.57, 323,556.12 and 75,517.65 is: 113,207.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,835.57 : 323,556.12 = 75,517.65 : x
  2. Step 2: Convert to fraction form
    215,835.57/323,556.12 = 75,517.65/x
  3. Step 3: Cross multiply
    215,835.57x = 323,556.12 × 75,517.65
  4. Step 4: Simplify right side
    215,835.57x = 24,434,197,825.52
  5. Step 5: Solve for x
    x = 24,434,197,825.52/215,835.57
  6. Step 6: Final answer
    x = 113,207.47

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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.