Home / 120,198.52-180,231.25-49,171.07

Finding the Fourth Proportional to 120,198.52, 180,231.25 and 49,171.07

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Solution

The fourth proportional to 120,198.52, 180,231.25 and 49,171.07 is: 73,729.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,198.52 : 180,231.25 = 49,171.07 : x
  2. Step 2: Convert to fraction form
    120,198.52/180,231.25 = 49,171.07/x
  3. Step 3: Cross multiply
    120,198.52x = 180,231.25 × 49,171.07
  4. Step 4: Simplify right side
    120,198.52x = 8,862,163,409.94
  5. Step 5: Solve for x
    x = 8,862,163,409.94/120,198.52
  6. Step 6: Final answer
    x = 73,729.39

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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.