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Finding the Fourth Proportional to 98,910.40, 148,365.60 and 88,542.40

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Solution

The fourth proportional to 98,910.40, 148,365.60 and 88,542.40 is: 132,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,910.40 : 148,365.60 = 88,542.40 : x
  2. Step 2: Convert to fraction form
    98,910.40/148,365.60 = 88,542.40/x
  3. Step 3: Cross multiply
    98,910.40x = 148,365.60 × 88,542.40
  4. Step 4: Simplify right side
    98,910.40x = 13,136,646,301.44
  5. Step 5: Solve for x
    x = 13,136,646,301.44/98,910.40
  6. Step 6: Final answer
    x = 132,813.60

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