Home / 203,973.20-281,489.28-123,415.52

Finding the Fourth Proportional to 203,973.20, 281,489.28 and 123,415.52

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Solution

The fourth proportional to 203,973.20, 281,489.28 and 123,415.52 is: 170,317.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,973.20 : 281,489.28 = 123,415.52 : x
  2. Step 2: Convert to fraction form
    203,973.20/281,489.28 = 123,415.52/x
  3. Step 3: Cross multiply
    203,973.20x = 281,489.28 × 123,415.52
  4. Step 4: Simplify right side
    203,973.20x = 34,740,145,865.63
  5. Step 5: Solve for x
    x = 34,740,145,865.63/203,973.20
  6. Step 6: Final answer
    x = 170,317.21

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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.