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Finding the Fourth Proportional to 108,035.20, 161,761.20 and 84,707.20

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Solution

The fourth proportional to 108,035.20, 161,761.20 and 84,707.20 is: 126,832.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,035.20 : 161,761.20 = 84,707.20 : x
  2. Step 2: Convert to fraction form
    108,035.20/161,761.20 = 84,707.20/x
  3. Step 3: Cross multiply
    108,035.20x = 161,761.20 × 84,707.20
  4. Step 4: Simplify right side
    108,035.20x = 13,702,338,320.64
  5. Step 5: Solve for x
    x = 13,702,338,320.64/108,035.20
  6. Step 6: Final answer
    x = 126,832.17

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