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Finding the Fourth Proportional to 99,108.80, 148,663.20 and 92,499.20

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Solution

The fourth proportional to 99,108.80, 148,663.20 and 92,499.20 is: 138,748.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,108.80 : 148,663.20 = 92,499.20 : x
  2. Step 2: Convert to fraction form
    99,108.80/148,663.20 = 92,499.20/x
  3. Step 3: Cross multiply
    99,108.80x = 148,663.20 × 92,499.20
  4. Step 4: Simplify right side
    99,108.80x = 13,751,227,069.44
  5. Step 5: Solve for x
    x = 13,751,227,069.44/99,108.80
  6. Step 6: Final answer
    x = 138,748.80

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