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Finding the Fourth Proportional to 152,147.68, 209,963.64 and 85,079.68

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Solution

The fourth proportional to 152,147.68, 209,963.64 and 85,079.68 is: 117,409.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,147.68 : 209,963.64 = 85,079.68 : x
  2. Step 2: Convert to fraction form
    152,147.68/209,963.64 = 85,079.68/x
  3. Step 3: Cross multiply
    152,147.68x = 209,963.64 × 85,079.68
  4. Step 4: Simplify right side
    152,147.68x = 17,863,639,302.84
  5. Step 5: Solve for x
    x = 17,863,639,302.84/152,147.68
  6. Step 6: Final answer
    x = 117,409.87

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