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Finding the Fourth Proportional to 213,716.15, 320,455.72 and 87,444.98

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Solution

The fourth proportional to 213,716.15, 320,455.72 and 87,444.98 is: 131,118.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,716.15 : 320,455.72 = 87,444.98 : x
  2. Step 2: Convert to fraction form
    213,716.15/320,455.72 = 87,444.98/x
  3. Step 3: Cross multiply
    213,716.15x = 320,455.72 × 87,444.98
  4. Step 4: Simplify right side
    213,716.15x = 28,022,244,026.29
  5. Step 5: Solve for x
    x = 28,022,244,026.29/213,716.15
  6. Step 6: Final answer
    x = 131,118.98

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