Home / 203,730.39-281,181.23-113,115.69

Finding the Fourth Proportional to 203,730.39, 281,181.23 and 113,115.69

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Solution

The fourth proportional to 203,730.39, 281,181.23 and 113,115.69 is: 156,118.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,730.39 : 281,181.23 = 113,115.69 : x
  2. Step 2: Convert to fraction form
    203,730.39/281,181.23 = 113,115.69/x
  3. Step 3: Cross multiply
    203,730.39x = 281,181.23 × 113,115.69
  4. Step 4: Simplify right side
    203,730.39x = 31,806,008,846.50
  5. Step 5: Solve for x
    x = 31,806,008,846.50/203,730.39
  6. Step 6: Final answer
    x = 156,118.14

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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.