Home / 205,247.52-283,288.80-120,391.92

Finding the Fourth Proportional to 205,247.52, 283,288.80 and 120,391.92

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Solution

The fourth proportional to 205,247.52, 283,288.80 and 120,391.92 is: 166,168.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,247.52 : 283,288.80 = 120,391.92 : x
  2. Step 2: Convert to fraction form
    205,247.52/283,288.80 = 120,391.92/x
  3. Step 3: Cross multiply
    205,247.52x = 283,288.80 × 120,391.92
  4. Step 4: Simplify right side
    205,247.52x = 34,105,682,546.50
  5. Step 5: Solve for x
    x = 34,105,682,546.50/205,247.52
  6. Step 6: Final answer
    x = 166,168.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.