Home / 198,078.16-273,366.54-113,178.76

Finding the Fourth Proportional to 198,078.16, 273,366.54 and 113,178.76

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Solution

The fourth proportional to 198,078.16, 273,366.54 and 113,178.76 is: 156,197.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,078.16 : 273,366.54 = 113,178.76 : x
  2. Step 2: Convert to fraction form
    198,078.16/273,366.54 = 113,178.76/x
  3. Step 3: Cross multiply
    198,078.16x = 273,366.54 × 113,178.76
  4. Step 4: Simplify right side
    198,078.16x = 30,939,286,022.69
  5. Step 5: Solve for x
    x = 30,939,286,022.69/198,078.16
  6. Step 6: Final answer
    x = 156,197.36

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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.