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Finding the Fourth Proportional to 147,711.61, 203,840.98 and 80,643.61

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Solution

The fourth proportional to 147,711.61, 203,840.98 and 80,643.61 is: 111,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,711.61 : 203,840.98 = 80,643.61 : x
  2. Step 2: Convert to fraction form
    147,711.61/203,840.98 = 80,643.61/x
  3. Step 3: Cross multiply
    147,711.61x = 203,840.98 × 80,643.61
  4. Step 4: Simplify right side
    147,711.61x = 16,438,472,493.14
  5. Step 5: Solve for x
    x = 16,438,472,493.14/147,711.61
  6. Step 6: Final answer
    x = 111,287.61

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