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Finding the Fourth Proportional to 203,136.63, 280,325.10 and 112,490.64

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Solution

The fourth proportional to 203,136.63, 280,325.10 and 112,490.64 is: 155,235.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,136.63 : 280,325.10 = 112,490.64 : x
  2. Step 2: Convert to fraction form
    203,136.63/280,325.10 = 112,490.64/x
  3. Step 3: Cross multiply
    203,136.63x = 280,325.10 × 112,490.64
  4. Step 4: Simplify right side
    203,136.63x = 31,533,949,907.06
  5. Step 5: Solve for x
    x = 31,533,949,907.06/203,136.63
  6. Step 6: Final answer
    x = 155,235.17

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