Home / 215,731.84-323,743.56-75,491.68

Finding the Fourth Proportional to 215,731.84, 323,743.56 and 75,491.68

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Solution

The fourth proportional to 215,731.84, 323,743.56 and 75,491.68 is: 113,288.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,731.84 : 323,743.56 = 75,491.68 : x
  2. Step 2: Convert to fraction form
    215,731.84/323,743.56 = 75,491.68/x
  3. Step 3: Cross multiply
    215,731.84x = 323,743.56 × 75,491.68
  4. Step 4: Simplify right side
    215,731.84x = 24,439,945,233.58
  5. Step 5: Solve for x
    x = 24,439,945,233.58/215,731.84
  6. Step 6: Final answer
    x = 113,288.54

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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.