Home / 203,935.83-281,431.74-113,289.33

Finding the Fourth Proportional to 203,935.83, 281,431.74 and 113,289.33

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Solution

The fourth proportional to 203,935.83, 281,431.74 and 113,289.33 is: 156,339.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,935.83 : 281,431.74 = 113,289.33 : x
  2. Step 2: Convert to fraction form
    203,935.83/281,431.74 = 113,289.33/x
  3. Step 3: Cross multiply
    203,935.83x = 281,431.74 × 113,289.33
  4. Step 4: Simplify right side
    203,935.83x = 31,883,211,858.18
  5. Step 5: Solve for x
    x = 31,883,211,858.18/203,935.83
  6. Step 6: Final answer
    x = 156,339.44

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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.