Home / 188,020.26-281,960.64-131,831.64

Finding the Fourth Proportional to 188,020.26, 281,960.64 and 131,831.64

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Solution

The fourth proportional to 188,020.26, 281,960.64 and 131,831.64 is: 197,698.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,020.26 : 281,960.64 = 131,831.64 : x
  2. Step 2: Convert to fraction form
    188,020.26/281,960.64 = 131,831.64/x
  3. Step 3: Cross multiply
    188,020.26x = 281,960.64 × 131,831.64
  4. Step 4: Simplify right side
    188,020.26x = 37,171,333,586.65
  5. Step 5: Solve for x
    x = 37,171,333,586.65/188,020.26
  6. Step 6: Final answer
    x = 197,698.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.