Home / 216,103.13-324,156.51-75,861.75

Finding the Fourth Proportional to 216,103.13, 324,156.51 and 75,861.75

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Solution

The fourth proportional to 216,103.13, 324,156.51 and 75,861.75 is: 113,793.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,103.13 : 324,156.51 = 75,861.75 : x
  2. Step 2: Convert to fraction form
    216,103.13/324,156.51 = 75,861.75/x
  3. Step 3: Cross multiply
    216,103.13x = 324,156.51 × 75,861.75
  4. Step 4: Simplify right side
    216,103.13x = 24,591,080,122.49
  5. Step 5: Solve for x
    x = 24,591,080,122.49/216,103.13
  6. Step 6: Final answer
    x = 113,793.26

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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.