Home / 215,865.79-323,799.29-75,591.61

Finding the Fourth Proportional to 215,865.79, 323,799.29 and 75,591.61

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Solution

The fourth proportional to 215,865.79, 323,799.29 and 75,591.61 is: 113,387.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,865.79 : 323,799.29 = 75,591.61 : x
  2. Step 2: Convert to fraction form
    215,865.79/323,799.29 = 75,591.61/x
  3. Step 3: Cross multiply
    215,865.79x = 323,799.29 × 75,591.61
  4. Step 4: Simplify right side
    215,865.79x = 24,476,509,836.94
  5. Step 5: Solve for x
    x = 24,476,509,836.94/215,865.79
  6. Step 6: Final answer
    x = 113,387.63

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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.