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Finding the Fourth Proportional to 111,904.12, 154,429.50 and 61,603.12

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Solution

The fourth proportional to 111,904.12, 154,429.50 and 61,603.12 is: 85,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,904.12 : 154,429.50 = 61,603.12 : x
  2. Step 2: Convert to fraction form
    111,904.12/154,429.50 = 61,603.12/x
  3. Step 3: Cross multiply
    111,904.12x = 154,429.50 × 61,603.12
  4. Step 4: Simplify right side
    111,904.12x = 9,513,339,020.04
  5. Step 5: Solve for x
    x = 9,513,339,020.04/111,904.12
  6. Step 6: Final answer
    x = 85,013.30

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