Home / 203,800.11-281,238.79-113,153.74

Finding the Fourth Proportional to 203,800.11, 281,238.79 and 113,153.74

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Solution

The fourth proportional to 203,800.11, 281,238.79 and 113,153.74 is: 156,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,800.11 : 281,238.79 = 113,153.74 : x
  2. Step 2: Convert to fraction form
    203,800.11/281,238.79 = 113,153.74/x
  3. Step 3: Cross multiply
    203,800.11x = 281,238.79 × 113,153.74
  4. Step 4: Simplify right side
    203,800.11x = 31,823,220,921.57
  5. Step 5: Solve for x
    x = 31,823,220,921.57/203,800.11
  6. Step 6: Final answer
    x = 156,149.18

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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.