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Finding the Fourth Proportional to 98,752.80, 148,129.20 and 79,069.80

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Solution

The fourth proportional to 98,752.80, 148,129.20 and 79,069.80 is: 118,604.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,752.80 : 148,129.20 = 79,069.80 : x
  2. Step 2: Convert to fraction form
    98,752.80/148,129.20 = 79,069.80/x
  3. Step 3: Cross multiply
    98,752.80x = 148,129.20 × 79,069.80
  4. Step 4: Simplify right side
    98,752.80x = 11,712,546,218.16
  5. Step 5: Solve for x
    x = 11,712,546,218.16/98,752.80
  6. Step 6: Final answer
    x = 118,604.70

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