Home / 198,025.72-273,289.95-113,140.96

Finding the Fourth Proportional to 198,025.72, 273,289.95 and 113,140.96

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Solution

The fourth proportional to 198,025.72, 273,289.95 and 113,140.96 is: 156,142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,025.72 : 273,289.95 = 113,140.96 : x
  2. Step 2: Convert to fraction form
    198,025.72/273,289.95 = 113,140.96/x
  3. Step 3: Cross multiply
    198,025.72x = 273,289.95 × 113,140.96
  4. Step 4: Simplify right side
    198,025.72x = 30,920,287,301.35
  5. Step 5: Solve for x
    x = 30,920,287,301.35/198,025.72
  6. Step 6: Final answer
    x = 156,142.78

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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.