Home / 204,400.75-281,831.72-139,901.06

Finding the Fourth Proportional to 204,400.75, 281,831.72 and 139,901.06

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Solution

The fourth proportional to 204,400.75, 281,831.72 and 139,901.06 is: 192,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,400.75 : 281,831.72 = 139,901.06 : x
  2. Step 2: Convert to fraction form
    204,400.75/281,831.72 = 139,901.06/x
  3. Step 3: Cross multiply
    204,400.75x = 281,831.72 × 139,901.06
  4. Step 4: Simplify right side
    204,400.75x = 39,428,556,369.62
  5. Step 5: Solve for x
    x = 39,428,556,369.62/204,400.75
  6. Step 6: Final answer
    x = 192,898.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.