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Finding the Fourth Proportional to 203,978.60, 305,862.30 and 91,562.01

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Solution

The fourth proportional to 203,978.60, 305,862.30 and 91,562.01 is: 137,295.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,978.60 : 305,862.30 = 91,562.01 : x
  2. Step 2: Convert to fraction form
    203,978.60/305,862.30 = 91,562.01/x
  3. Step 3: Cross multiply
    203,978.60x = 305,862.30 × 91,562.01
  4. Step 4: Simplify right side
    203,978.60x = 28,005,368,447.41
  5. Step 5: Solve for x
    x = 28,005,368,447.41/203,978.60
  6. Step 6: Final answer
    x = 137,295.62

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