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Finding the Fourth Proportional to 108,999.52, 150,420.33 and 65,980

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Solution

The fourth proportional to 108,999.52, 150,420.33 and 65,980 is: 91,053.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,999.52 : 150,420.33 = 65,980 : x
  2. Step 2: Convert to fraction form
    108,999.52/150,420.33 = 65,980/x
  3. Step 3: Cross multiply
    108,999.52x = 150,420.33 × 65,980
  4. Step 4: Simplify right side
    108,999.52x = 9,924,733,373.40
  5. Step 5: Solve for x
    x = 9,924,733,373.40/108,999.52
  6. Step 6: Final answer
    x = 91,053.00

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