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Finding the Fourth Proportional to 111,639.61, 154,024.55 and 69,182.65

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Solution

The fourth proportional to 111,639.61, 154,024.55 and 69,182.65 is: 95,448.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,639.61 : 154,024.55 = 69,182.65 : x
  2. Step 2: Convert to fraction form
    111,639.61/154,024.55 = 69,182.65/x
  3. Step 3: Cross multiply
    111,639.61x = 154,024.55 × 69,182.65
  4. Step 4: Simplify right side
    111,639.61x = 10,655,825,936.89
  5. Step 5: Solve for x
    x = 10,655,825,936.89/111,639.61
  6. Step 6: Final answer
    x = 95,448.44

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