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Finding the Fourth Proportional to 173,639.20, 260,458.80 and 75,335.20

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Solution

The fourth proportional to 173,639.20, 260,458.80 and 75,335.20 is: 113,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,639.20 : 260,458.80 = 75,335.20 : x
  2. Step 2: Convert to fraction form
    173,639.20/260,458.80 = 75,335.20/x
  3. Step 3: Cross multiply
    173,639.20x = 260,458.80 × 75,335.20
  4. Step 4: Simplify right side
    173,639.20x = 19,621,715,789.76
  5. Step 5: Solve for x
    x = 19,621,715,789.76/173,639.20
  6. Step 6: Final answer
    x = 113,002.80

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