Home / 236,691.42-355,040.28-78,919.94

Finding the Fourth Proportional to 236,691.42, 355,040.28 and 78,919.94

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Solution

The fourth proportional to 236,691.42, 355,040.28 and 78,919.94 is: 118,380.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,691.42 : 355,040.28 = 78,919.94 : x
  2. Step 2: Convert to fraction form
    236,691.42/355,040.28 = 78,919.94/x
  3. Step 3: Cross multiply
    236,691.42x = 355,040.28 × 78,919.94
  4. Step 4: Simplify right side
    236,691.42x = 28,019,755,819.98
  5. Step 5: Solve for x
    x = 28,019,755,819.98/236,691.42
  6. Step 6: Final answer
    x = 118,380.95

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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.