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Finding the Fourth Proportional to 223,663.94, 308,664.72 and 128,189.06

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Solution

The fourth proportional to 223,663.94, 308,664.72 and 128,189.06 is: 176,905.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,663.94 : 308,664.72 = 128,189.06 : x
  2. Step 2: Convert to fraction form
    223,663.94/308,664.72 = 128,189.06/x
  3. Step 3: Cross multiply
    223,663.94x = 308,664.72 × 128,189.06
  4. Step 4: Simplify right side
    223,663.94x = 39,567,440,311.96
  5. Step 5: Solve for x
    x = 39,567,440,311.96/223,663.94
  6. Step 6: Final answer
    x = 176,905.76

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