Home / 203,667.31-281,081.64-113,023.90

Finding the Fourth Proportional to 203,667.31, 281,081.64 and 113,023.90

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Solution

The fourth proportional to 203,667.31, 281,081.64 and 113,023.90 is: 155,984.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,667.31 : 281,081.64 = 113,023.90 : x
  2. Step 2: Convert to fraction form
    203,667.31/281,081.64 = 113,023.90/x
  3. Step 3: Cross multiply
    203,667.31x = 281,081.64 × 113,023.90
  4. Step 4: Simplify right side
    203,667.31x = 31,768,943,171.20
  5. Step 5: Solve for x
    x = 31,768,943,171.20/203,667.31
  6. Step 6: Final answer
    x = 155,984.50

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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.