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Finding the Fourth Proportional to 106,316.16, 159,436.80 and 31,416.36

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Solution

The fourth proportional to 106,316.16, 159,436.80 and 31,416.36 is: 47,113.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,316.16 : 159,436.80 = 31,416.36 : x
  2. Step 2: Convert to fraction form
    106,316.16/159,436.80 = 31,416.36/x
  3. Step 3: Cross multiply
    106,316.16x = 159,436.80 × 31,416.36
  4. Step 4: Simplify right side
    106,316.16x = 5,008,923,906.05
  5. Step 5: Solve for x
    x = 5,008,923,906.05/106,316.16
  6. Step 6: Final answer
    x = 47,113.48

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