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Finding the Fourth Proportional to 102,042.32, 140,815.67 and 56,719.17

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Solution

The fourth proportional to 102,042.32, 140,815.67 and 56,719.17 is: 78,270.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,042.32 : 140,815.67 = 56,719.17 : x
  2. Step 2: Convert to fraction form
    102,042.32/140,815.67 = 56,719.17/x
  3. Step 3: Cross multiply
    102,042.32x = 140,815.67 × 56,719.17
  4. Step 4: Simplify right side
    102,042.32x = 7,986,947,641.80
  5. Step 5: Solve for x
    x = 7,986,947,641.80/102,042.32
  6. Step 6: Final answer
    x = 78,270.94

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