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Finding the Fourth Proportional to 126,145.98, 189,214.86 and 51,243.96

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Solution

The fourth proportional to 126,145.98, 189,214.86 and 51,243.96 is: 76,864.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,145.98 : 189,214.86 = 51,243.96 : x
  2. Step 2: Convert to fraction form
    126,145.98/189,214.86 = 51,243.96/x
  3. Step 3: Cross multiply
    126,145.98x = 189,214.86 × 51,243.96
  4. Step 4: Simplify right side
    126,145.98x = 9,696,118,717.25
  5. Step 5: Solve for x
    x = 9,696,118,717.25/126,145.98
  6. Step 6: Final answer
    x = 76,864.27

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