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Finding the Fourth Proportional to 153,981.73, 212,559.57 and 93,571.78

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Solution

The fourth proportional to 153,981.73, 212,559.57 and 93,571.78 is: 129,168.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,981.73 : 212,559.57 = 93,571.78 : x
  2. Step 2: Convert to fraction form
    153,981.73/212,559.57 = 93,571.78/x
  3. Step 3: Cross multiply
    153,981.73x = 212,559.57 × 93,571.78
  4. Step 4: Simplify right side
    153,981.73x = 19,889,577,320.93
  5. Step 5: Solve for x
    x = 19,889,577,320.93/153,981.73
  6. Step 6: Final answer
    x = 129,168.42

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