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Finding the Fourth Proportional to 193,031.52, 289,448.56 and 80,681.08

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Solution

The fourth proportional to 193,031.52, 289,448.56 and 80,681.08 is: 120,980.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,031.52 : 289,448.56 = 80,681.08 : x
  2. Step 2: Convert to fraction form
    193,031.52/289,448.56 = 80,681.08/x
  3. Step 3: Cross multiply
    193,031.52x = 289,448.56 × 80,681.08
  4. Step 4: Simplify right side
    193,031.52x = 23,353,022,425.24
  5. Step 5: Solve for x
    x = 23,353,022,425.24/193,031.52
  6. Step 6: Final answer
    x = 120,980.36

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