Home / 171,272.22-256,576-126,211.83

Finding the Fourth Proportional to 171,272.22, 256,576 and 126,211.83

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Solution

The fourth proportional to 171,272.22, 256,576 and 126,211.83 is: 189,072.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,272.22 : 256,576 = 126,211.83 : x
  2. Step 2: Convert to fraction form
    171,272.22/256,576 = 126,211.83/x
  3. Step 3: Cross multiply
    171,272.22x = 256,576 × 126,211.83
  4. Step 4: Simplify right side
    171,272.22x = 32,382,926,494.08
  5. Step 5: Solve for x
    x = 32,382,926,494.08/171,272.22
  6. Step 6: Final answer
    x = 189,072.85

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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.