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Finding the Fourth Proportional to 134,558.88, 201,572.64 and 78,257.40

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Solution

The fourth proportional to 134,558.88, 201,572.64 and 78,257.40 is: 117,231.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,558.88 : 201,572.64 = 78,257.40 : x
  2. Step 2: Convert to fraction form
    134,558.88/201,572.64 = 78,257.40/x
  3. Step 3: Cross multiply
    134,558.88x = 201,572.64 × 78,257.40
  4. Step 4: Simplify right side
    134,558.88x = 15,774,550,717.54
  5. Step 5: Solve for x
    x = 15,774,550,717.54/134,558.88
  6. Step 6: Final answer
    x = 117,231.58

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