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Finding the Fourth Proportional to 129,741.86, 178,884.69 and 106,691.13

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Solution

The fourth proportional to 129,741.86, 178,884.69 and 106,691.13 is: 147,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,741.86 : 178,884.69 = 106,691.13 : x
  2. Step 2: Convert to fraction form
    129,741.86/178,884.69 = 106,691.13/x
  3. Step 3: Cross multiply
    129,741.86x = 178,884.69 × 106,691.13
  4. Step 4: Simplify right side
    129,741.86x = 19,085,409,715.80
  5. Step 5: Solve for x
    x = 19,085,409,715.80/129,741.86
  6. Step 6: Final answer
    x = 147,102.95

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