Home / 215,660.86-323,635.26-75,419.48

Finding the Fourth Proportional to 215,660.86, 323,635.26 and 75,419.48

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Solution

The fourth proportional to 215,660.86, 323,635.26 and 75,419.48 is: 113,179.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,660.86 : 323,635.26 = 75,419.48 : x
  2. Step 2: Convert to fraction form
    215,660.86/323,635.26 = 75,419.48/x
  3. Step 3: Cross multiply
    215,660.86x = 323,635.26 × 75,419.48
  4. Step 4: Simplify right side
    215,660.86x = 24,408,403,827.95
  5. Step 5: Solve for x
    x = 24,408,403,827.95/215,660.86
  6. Step 6: Final answer
    x = 113,179.57

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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.