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Finding the Fourth Proportional to 173,409.66, 260,003.66 and 128,458.58

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Solution

The fourth proportional to 173,409.66, 260,003.66 and 128,458.58 is: 192,605.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,409.66 : 260,003.66 = 128,458.58 : x
  2. Step 2: Convert to fraction form
    173,409.66/260,003.66 = 128,458.58/x
  3. Step 3: Cross multiply
    173,409.66x = 260,003.66 × 128,458.58
  4. Step 4: Simplify right side
    173,409.66x = 33,399,699,016.09
  5. Step 5: Solve for x
    x = 33,399,699,016.09/173,409.66
  6. Step 6: Final answer
    x = 192,605.76

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