Home / 135,422.38-203,022.74-51,134.72

Finding the Fourth Proportional to 135,422.38, 203,022.74 and 51,134.72

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Solution

The fourth proportional to 135,422.38, 203,022.74 and 51,134.72 is: 76,660.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,422.38 : 203,022.74 = 51,134.72 : x
  2. Step 2: Convert to fraction form
    135,422.38/203,022.74 = 51,134.72/x
  3. Step 3: Cross multiply
    135,422.38x = 203,022.74 × 51,134.72
  4. Step 4: Simplify right side
    135,422.38x = 10,381,510,076.26
  5. Step 5: Solve for x
    x = 10,381,510,076.26/135,422.38
  6. Step 6: Final answer
    x = 76,660.23

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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.