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Finding the Fourth Proportional to 98,538.31, 147,918.03 and 39,415.20

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Solution

The fourth proportional to 98,538.31, 147,918.03 and 39,415.20 is: 59,167.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,538.31 : 147,918.03 = 39,415.20 : x
  2. Step 2: Convert to fraction form
    98,538.31/147,918.03 = 39,415.20/x
  3. Step 3: Cross multiply
    98,538.31x = 147,918.03 × 39,415.20
  4. Step 4: Simplify right side
    98,538.31x = 5,830,218,736.06
  5. Step 5: Solve for x
    x = 5,830,218,736.06/98,538.31
  6. Step 6: Final answer
    x = 59,167.03

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