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Finding the Fourth Proportional to 142,798.80, 214,198.20 and 136,040.40

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Solution

The fourth proportional to 142,798.80, 214,198.20 and 136,040.40 is: 204,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,798.80 : 214,198.20 = 136,040.40 : x
  2. Step 2: Convert to fraction form
    142,798.80/214,198.20 = 136,040.40/x
  3. Step 3: Cross multiply
    142,798.80x = 214,198.20 × 136,040.40
  4. Step 4: Simplify right side
    142,798.80x = 29,139,608,807.28
  5. Step 5: Solve for x
    x = 29,139,608,807.28/142,798.80
  6. Step 6: Final answer
    x = 204,060.60

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