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Finding the Fourth Proportional to 135,921.96, 203,882.94 and 42,435.72

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Solution

The fourth proportional to 135,921.96, 203,882.94 and 42,435.72 is: 63,653.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,921.96 : 203,882.94 = 42,435.72 : x
  2. Step 2: Convert to fraction form
    135,921.96/203,882.94 = 42,435.72/x
  3. Step 3: Cross multiply
    135,921.96x = 203,882.94 × 42,435.72
  4. Step 4: Simplify right side
    135,921.96x = 8,651,919,354.62
  5. Step 5: Solve for x
    x = 8,651,919,354.62/135,921.96
  6. Step 6: Final answer
    x = 63,653.58

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