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Finding the Fourth Proportional to 122,398.32, 168,846.84 and 81,632.64

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Solution

The fourth proportional to 122,398.32, 168,846.84 and 81,632.64 is: 112,611.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,398.32 : 168,846.84 = 81,632.64 : x
  2. Step 2: Convert to fraction form
    122,398.32/168,846.84 = 81,632.64/x
  3. Step 3: Cross multiply
    122,398.32x = 168,846.84 × 81,632.64
  4. Step 4: Simplify right side
    122,398.32x = 13,783,413,304.86
  5. Step 5: Solve for x
    x = 13,783,413,304.86/122,398.32
  6. Step 6: Final answer
    x = 112,611.13

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