Home / 203,919.75-281,417.15-113,282.60

Finding the Fourth Proportional to 203,919.75, 281,417.15 and 113,282.60

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Solution

The fourth proportional to 203,919.75, 281,417.15 and 113,282.60 is: 156,334.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,919.75 : 281,417.15 = 113,282.60 : x
  2. Step 2: Convert to fraction form
    203,919.75/281,417.15 = 113,282.60/x
  3. Step 3: Cross multiply
    203,919.75x = 281,417.15 × 113,282.60
  4. Step 4: Simplify right side
    203,919.75x = 31,879,665,312.71
  5. Step 5: Solve for x
    x = 31,879,665,312.71/203,919.75
  6. Step 6: Final answer
    x = 156,334.37

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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.