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Finding the Fourth Proportional to 196,296.71, 270,820.47 and 128,353.45

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Solution

The fourth proportional to 196,296.71, 270,820.47 and 128,353.45 is: 177,082.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,296.71 : 270,820.47 = 128,353.45 : x
  2. Step 2: Convert to fraction form
    196,296.71/270,820.47 = 128,353.45/x
  3. Step 3: Cross multiply
    196,296.71x = 270,820.47 × 128,353.45
  4. Step 4: Simplify right side
    196,296.71x = 34,760,741,245.20
  5. Step 5: Solve for x
    x = 34,760,741,245.20/196,296.71
  6. Step 6: Final answer
    x = 177,082.65

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