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Finding the Fourth Proportional to 140,793.70, 210,665.66 and 139,219.06

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Solution

The fourth proportional to 140,793.70, 210,665.66 and 139,219.06 is: 208,309.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,793.70 : 210,665.66 = 139,219.06 : x
  2. Step 2: Convert to fraction form
    140,793.70/210,665.66 = 139,219.06/x
  3. Step 3: Cross multiply
    140,793.70x = 210,665.66 × 139,219.06
  4. Step 4: Simplify right side
    140,793.70x = 29,328,675,159.48
  5. Step 5: Solve for x
    x = 29,328,675,159.48/140,793.70
  6. Step 6: Final answer
    x = 208,309.57

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