Home / 215,948.68-323,928.78-75,715.72

Finding the Fourth Proportional to 215,948.68, 323,928.78 and 75,715.72

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Solution

The fourth proportional to 215,948.68, 323,928.78 and 75,715.72 is: 113,575.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,948.68 : 323,928.78 = 75,715.72 : x
  2. Step 2: Convert to fraction form
    215,948.68/323,928.78 = 75,715.72/x
  3. Step 3: Cross multiply
    215,948.68x = 323,928.78 × 75,715.72
  4. Step 4: Simplify right side
    215,948.68x = 24,526,500,806.42
  5. Step 5: Solve for x
    x = 24,526,500,806.42/215,948.68
  6. Step 6: Final answer
    x = 113,575.60

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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.