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Finding the Fourth Proportional to 170,702.80, 256,345.80 and 111,799.60

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Solution

The fourth proportional to 170,702.80, 256,345.80 and 111,799.60 is: 167,890.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,702.80 : 256,345.80 = 111,799.60 : x
  2. Step 2: Convert to fraction form
    170,702.80/256,345.80 = 111,799.60/x
  3. Step 3: Cross multiply
    170,702.80x = 256,345.80 × 111,799.60
  4. Step 4: Simplify right side
    170,702.80x = 28,659,357,901.68
  5. Step 5: Solve for x
    x = 28,659,357,901.68/170,702.80
  6. Step 6: Final answer
    x = 167,890.38

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