Home / 281,928.60-422,912.10-89,787.80

Finding the Fourth Proportional to 281,928.60, 422,912.10 and 89,787.80

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Solution

The fourth proportional to 281,928.60, 422,912.10 and 89,787.80 is: 134,687.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,928.60 : 422,912.10 = 89,787.80 : x
  2. Step 2: Convert to fraction form
    281,928.60/422,912.10 = 89,787.80/x
  3. Step 3: Cross multiply
    281,928.60x = 422,912.10 × 89,787.80
  4. Step 4: Simplify right side
    281,928.60x = 37,972,347,052.38
  5. Step 5: Solve for x
    x = 37,972,347,052.38/281,928.60
  6. Step 6: Final answer
    x = 134,687.81

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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.