Home / 203,787.74-281,214.07-113,143.68

Finding the Fourth Proportional to 203,787.74, 281,214.07 and 113,143.68

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Solution

The fourth proportional to 203,787.74, 281,214.07 and 113,143.68 is: 156,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,787.74 : 281,214.07 = 113,143.68 : x
  2. Step 2: Convert to fraction form
    203,787.74/281,214.07 = 113,143.68/x
  3. Step 3: Cross multiply
    203,787.74x = 281,214.07 × 113,143.68
  4. Step 4: Simplify right side
    203,787.74x = 31,817,594,181.86
  5. Step 5: Solve for x
    x = 31,817,594,181.86/203,787.74
  6. Step 6: Final answer
    x = 156,131.06

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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.