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Finding the Fourth Proportional to 142,721.52, 196,953.12 and 79,059.12

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Solution

The fourth proportional to 142,721.52, 196,953.12 and 79,059.12 is: 109,100.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,721.52 : 196,953.12 = 79,059.12 : x
  2. Step 2: Convert to fraction form
    142,721.52/196,953.12 = 79,059.12/x
  3. Step 3: Cross multiply
    142,721.52x = 196,953.12 × 79,059.12
  4. Step 4: Simplify right side
    142,721.52x = 15,570,940,348.45
  5. Step 5: Solve for x
    x = 15,570,940,348.45/142,721.52
  6. Step 6: Final answer
    x = 109,100.16

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