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Finding the Fourth Proportional to 123,443.36, 185,174.64 and 40,345.76

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Solution

The fourth proportional to 123,443.36, 185,174.64 and 40,345.76 is: 60,521.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,443.36 : 185,174.64 = 40,345.76 : x
  2. Step 2: Convert to fraction form
    123,443.36/185,174.64 = 40,345.76/x
  3. Step 3: Cross multiply
    123,443.36x = 185,174.64 × 40,345.76
  4. Step 4: Simplify right side
    123,443.36x = 7,471,011,583.53
  5. Step 5: Solve for x
    x = 7,471,011,583.53/123,443.36
  6. Step 6: Final answer
    x = 60,521.78

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