Home / 198,022.20-273,285.12-113,137.44

Finding the Fourth Proportional to 198,022.20, 273,285.12 and 113,137.44

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Solution

The fourth proportional to 198,022.20, 273,285.12 and 113,137.44 is: 156,137.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,022.20 : 273,285.12 = 113,137.44 : x
  2. Step 2: Convert to fraction form
    198,022.20/273,285.12 = 113,137.44/x
  3. Step 3: Cross multiply
    198,022.20x = 273,285.12 × 113,137.44
  4. Step 4: Simplify right side
    198,022.20x = 30,918,778,866.89
  5. Step 5: Solve for x
    x = 30,918,778,866.89/198,022.20
  6. Step 6: Final answer
    x = 156,137.94

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1.5x scale

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.