Home / 203,956.85-281,438.80-117,902.21

Finding the Fourth Proportional to 203,956.85, 281,438.80 and 117,902.21

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Solution

The fourth proportional to 203,956.85, 281,438.80 and 117,902.21 is: 162,692.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,956.85 : 281,438.80 = 117,902.21 : x
  2. Step 2: Convert to fraction form
    203,956.85/281,438.80 = 117,902.21/x
  3. Step 3: Cross multiply
    203,956.85x = 281,438.80 × 117,902.21
  4. Step 4: Simplify right side
    203,956.85x = 33,182,254,797.80
  5. Step 5: Solve for x
    x = 33,182,254,797.80/203,956.85
  6. Step 6: Final answer
    x = 162,692.52

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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.