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Finding the Fourth Proportional to 114,588.40, 172,012.20 and 88,409.20

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Solution

The fourth proportional to 114,588.40, 172,012.20 and 88,409.20 is: 132,713.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,588.40 : 172,012.20 = 88,409.20 : x
  2. Step 2: Convert to fraction form
    114,588.40/172,012.20 = 88,409.20/x
  3. Step 3: Cross multiply
    114,588.40x = 172,012.20 × 88,409.20
  4. Step 4: Simplify right side
    114,588.40x = 15,207,460,992.24
  5. Step 5: Solve for x
    x = 15,207,460,992.24/114,588.40
  6. Step 6: Final answer
    x = 132,713.79

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