Home / 203,830.12-281,280.14-113,183.72

Finding the Fourth Proportional to 203,830.12, 281,280.14 and 113,183.72

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Solution

The fourth proportional to 203,830.12, 281,280.14 and 113,183.72 is: 156,190.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,830.12 : 281,280.14 = 113,183.72 : x
  2. Step 2: Convert to fraction form
    203,830.12/281,280.14 = 113,183.72/x
  3. Step 3: Cross multiply
    203,830.12x = 281,280.14 × 113,183.72
  4. Step 4: Simplify right side
    203,830.12x = 31,836,332,607.32
  5. Step 5: Solve for x
    x = 31,836,332,607.32/203,830.12
  6. Step 6: Final answer
    x = 156,190.52

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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.