Home / 197,414.39-272,408.78-111,374.72

Finding the Fourth Proportional to 197,414.39, 272,408.78 and 111,374.72

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Solution

The fourth proportional to 197,414.39, 272,408.78 and 111,374.72 is: 153,684.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,414.39 : 272,408.78 = 111,374.72 : x
  2. Step 2: Convert to fraction form
    197,414.39/272,408.78 = 111,374.72/x
  3. Step 3: Cross multiply
    197,414.39x = 272,408.78 × 111,374.72
  4. Step 4: Simplify right side
    197,414.39x = 30,339,451,535.97
  5. Step 5: Solve for x
    x = 30,339,451,535.97/197,414.39
  6. Step 6: Final answer
    x = 153,684.10

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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.