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Finding the Fourth Proportional to 178,783.75, 268,171.47 and 90,013.42

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Solution

The fourth proportional to 178,783.75, 268,171.47 and 90,013.42 is: 135,018.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,783.75 : 268,171.47 = 90,013.42 : x
  2. Step 2: Convert to fraction form
    178,783.75/268,171.47 = 90,013.42/x
  3. Step 3: Cross multiply
    178,783.75x = 268,171.47 × 90,013.42
  4. Step 4: Simplify right side
    178,783.75x = 24,139,031,161.13
  5. Step 5: Solve for x
    x = 24,139,031,161.13/178,783.75
  6. Step 6: Final answer
    x = 135,018.04

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