Home / 215,836.57-323,557.62-75,518.65

Finding the Fourth Proportional to 215,836.57, 323,557.62 and 75,518.65

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Solution

The fourth proportional to 215,836.57, 323,557.62 and 75,518.65 is: 113,208.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,836.57 : 323,557.62 = 75,518.65 : x
  2. Step 2: Convert to fraction form
    215,836.57/323,557.62 = 75,518.65/x
  3. Step 3: Cross multiply
    215,836.57x = 323,557.62 × 75,518.65
  4. Step 4: Simplify right side
    215,836.57x = 24,434,634,659.61
  5. Step 5: Solve for x
    x = 24,434,634,659.61/215,836.57
  6. Step 6: Final answer
    x = 113,208.96

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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.