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Finding the Fourth Proportional to 118,104.20, 176,724.30 and 87,000.20

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Solution

The fourth proportional to 118,104.20, 176,724.30 and 87,000.20 is: 130,182.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,104.20 : 176,724.30 = 87,000.20 : x
  2. Step 2: Convert to fraction form
    118,104.20/176,724.30 = 87,000.20/x
  3. Step 3: Cross multiply
    118,104.20x = 176,724.30 × 87,000.20
  4. Step 4: Simplify right side
    118,104.20x = 15,375,049,444.86
  5. Step 5: Solve for x
    x = 15,375,049,444.86/118,104.20
  6. Step 6: Final answer
    x = 130,182.07

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