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Finding the Fourth Proportional to 174,590.80, 261,713.40 and 85,771.60

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Solution

The fourth proportional to 174,590.80, 261,713.40 and 85,771.60 is: 128,572.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,590.80 : 261,713.40 = 85,771.60 : x
  2. Step 2: Convert to fraction form
    174,590.80/261,713.40 = 85,771.60/x
  3. Step 3: Cross multiply
    174,590.80x = 261,713.40 × 85,771.60
  4. Step 4: Simplify right side
    174,590.80x = 22,447,577,059.44
  5. Step 5: Solve for x
    x = 22,447,577,059.44/174,590.80
  6. Step 6: Final answer
    x = 128,572.51

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