Home / 102,180.79-140,929.61-66,382.33

Finding the Fourth Proportional to 102,180.79, 140,929.61 and 66,382.33

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Solution

The fourth proportional to 102,180.79, 140,929.61 and 66,382.33 is: 91,555.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,180.79 : 140,929.61 = 66,382.33 : x
  2. Step 2: Convert to fraction form
    102,180.79/140,929.61 = 66,382.33/x
  3. Step 3: Cross multiply
    102,180.79x = 140,929.61 × 66,382.33
  4. Step 4: Simplify right side
    102,180.79x = 9,355,235,545.88
  5. Step 5: Solve for x
    x = 9,355,235,545.88/102,180.79
  6. Step 6: Final answer
    x = 91,555.72

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