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Finding the Fourth Proportional to 98,684.19, 147,895.07 and 85,474.71

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Solution

The fourth proportional to 98,684.19, 147,895.07 and 85,474.71 is: 128,098.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,684.19 : 147,895.07 = 85,474.71 : x
  2. Step 2: Convert to fraction form
    98,684.19/147,895.07 = 85,474.71/x
  3. Step 3: Cross multiply
    98,684.19x = 147,895.07 × 85,474.71
  4. Step 4: Simplify right side
    98,684.19x = 12,641,287,791.31
  5. Step 5: Solve for x
    x = 12,641,287,791.31/98,684.19
  6. Step 6: Final answer
    x = 128,098.41

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