Home / 179,427.20-269,142.88-76,830.72

Finding the Fourth Proportional to 179,427.20, 269,142.88 and 76,830.72

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Solution

The fourth proportional to 179,427.20, 269,142.88 and 76,830.72 is: 115,246.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,427.20 : 269,142.88 = 76,830.72 : x
  2. Step 2: Convert to fraction form
    179,427.20/269,142.88 = 76,830.72/x
  3. Step 3: Cross multiply
    179,427.20x = 269,142.88 × 76,830.72
  4. Step 4: Simplify right side
    179,427.20x = 20,678,441,253.27
  5. Step 5: Solve for x
    x = 20,678,441,253.27/179,427.20
  6. Step 6: Final answer
    x = 115,246.97

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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.