Home / 215,266.74-322,725.15-75,123.78

Finding the Fourth Proportional to 215,266.74, 322,725.15 and 75,123.78

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Solution

The fourth proportional to 215,266.74, 322,725.15 and 75,123.78 is: 112,624.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,266.74 : 322,725.15 = 75,123.78 : x
  2. Step 2: Convert to fraction form
    215,266.74/322,725.15 = 75,123.78/x
  3. Step 3: Cross multiply
    215,266.74x = 322,725.15 × 75,123.78
  4. Step 4: Simplify right side
    215,266.74x = 24,244,331,986.64
  5. Step 5: Solve for x
    x = 24,244,331,986.64/215,266.74
  6. Step 6: Final answer
    x = 112,624.61

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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.