Home / 187,831.98-281,658.78-108,970.38

Finding the Fourth Proportional to 187,831.98, 281,658.78 and 108,970.38

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Solution

The fourth proportional to 187,831.98, 281,658.78 and 108,970.38 is: 163,403.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,831.98 : 281,658.78 = 108,970.38 : x
  2. Step 2: Convert to fraction form
    187,831.98/281,658.78 = 108,970.38/x
  3. Step 3: Cross multiply
    187,831.98x = 281,658.78 × 108,970.38
  4. Step 4: Simplify right side
    187,831.98x = 30,692,464,286.94
  5. Step 5: Solve for x
    x = 30,692,464,286.94/187,831.98
  6. Step 6: Final answer
    x = 163,403.83

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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.