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Finding the Fourth Proportional to 112,433.26, 154,894.44 and 78,379.87

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Solution

The fourth proportional to 112,433.26, 154,894.44 and 78,379.87 is: 107,980.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,433.26 : 154,894.44 = 78,379.87 : x
  2. Step 2: Convert to fraction form
    112,433.26/154,894.44 = 78,379.87/x
  3. Step 3: Cross multiply
    112,433.26x = 154,894.44 × 78,379.87
  4. Step 4: Simplify right side
    112,433.26x = 12,140,606,070.92
  5. Step 5: Solve for x
    x = 12,140,606,070.92/112,433.26
  6. Step 6: Final answer
    x = 107,980.56

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