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Finding the Fourth Proportional to 118,702.39, 178,080.25 and 39,814.60

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Solution

The fourth proportional to 118,702.39, 178,080.25 and 39,814.60 is: 59,730.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,702.39 : 178,080.25 = 39,814.60 : x
  2. Step 2: Convert to fraction form
    118,702.39/178,080.25 = 39,814.60/x
  3. Step 3: Cross multiply
    118,702.39x = 178,080.25 × 39,814.60
  4. Step 4: Simplify right side
    118,702.39x = 7,090,193,921.65
  5. Step 5: Solve for x
    x = 7,090,193,921.65/118,702.39
  6. Step 6: Final answer
    x = 59,730.84

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