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Finding the Fourth Proportional to 127,855.08, 176,400.86 and 74,129.31

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Solution

The fourth proportional to 127,855.08, 176,400.86 and 74,129.31 is: 102,275.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,855.08 : 176,400.86 = 74,129.31 : x
  2. Step 2: Convert to fraction form
    127,855.08/176,400.86 = 74,129.31/x
  3. Step 3: Cross multiply
    127,855.08x = 176,400.86 × 74,129.31
  4. Step 4: Simplify right side
    127,855.08x = 13,076,473,664.56
  5. Step 5: Solve for x
    x = 13,076,473,664.56/127,855.08
  6. Step 6: Final answer
    x = 102,275.75

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