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Finding the Fourth Proportional to 111,733.92, 154,066.56 and 81,465.84

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Solution

The fourth proportional to 111,733.92, 154,066.56 and 81,465.84 is: 112,330.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,733.92 : 154,066.56 = 81,465.84 : x
  2. Step 2: Convert to fraction form
    111,733.92/154,066.56 = 81,465.84/x
  3. Step 3: Cross multiply
    111,733.92x = 154,066.56 × 81,465.84
  4. Step 4: Simplify right side
    111,733.92x = 12,551,161,726.31
  5. Step 5: Solve for x
    x = 12,551,161,726.31/111,733.92
  6. Step 6: Final answer
    x = 112,330.81

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