Home / 119,939.20-179,930.40-49,825.60

Finding the Fourth Proportional to 119,939.20, 179,930.40 and 49,825.60

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Solution

The fourth proportional to 119,939.20, 179,930.40 and 49,825.60 is: 74,747.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,939.20 : 179,930.40 = 49,825.60 : x
  2. Step 2: Convert to fraction form
    119,939.20/179,930.40 = 49,825.60/x
  3. Step 3: Cross multiply
    119,939.20x = 179,930.40 × 49,825.60
  4. Step 4: Simplify right side
    119,939.20x = 8,965,140,138.24
  5. Step 5: Solve for x
    x = 8,965,140,138.24/119,939.20
  6. Step 6: Final answer
    x = 74,747.37

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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.