Home / 203,920.98-281,451.23-130,286.31

Finding the Fourth Proportional to 203,920.98, 281,451.23 and 130,286.31

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Solution

The fourth proportional to 203,920.98, 281,451.23 and 130,286.31 is: 179,820.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,920.98 : 281,451.23 = 130,286.31 : x
  2. Step 2: Convert to fraction form
    203,920.98/281,451.23 = 130,286.31/x
  3. Step 3: Cross multiply
    203,920.98x = 281,451.23 × 130,286.31
  4. Step 4: Simplify right side
    203,920.98x = 36,669,242,201.66
  5. Step 5: Solve for x
    x = 36,669,242,201.66/203,920.98
  6. Step 6: Final answer
    x = 179,820.84

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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.