Home / 135,939.40-203,909.10-114,288.10

Finding the Fourth Proportional to 135,939.40, 203,909.10 and 114,288.10

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Solution

The fourth proportional to 135,939.40, 203,909.10 and 114,288.10 is: 171,432.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,939.40 : 203,909.10 = 114,288.10 : x
  2. Step 2: Convert to fraction form
    135,939.40/203,909.10 = 114,288.10/x
  3. Step 3: Cross multiply
    135,939.40x = 203,909.10 × 114,288.10
  4. Step 4: Simplify right side
    135,939.40x = 23,304,383,611.71
  5. Step 5: Solve for x
    x = 23,304,383,611.71/135,939.40
  6. Step 6: Final answer
    x = 171,432.15

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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.