Home / 135,399.07-203,099.82-51,137.20

Finding the Fourth Proportional to 135,399.07, 203,099.82 and 51,137.20

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Solution

The fourth proportional to 135,399.07, 203,099.82 and 51,137.20 is: 76,706.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,399.07 : 203,099.82 = 51,137.20 : x
  2. Step 2: Convert to fraction form
    135,399.07/203,099.82 = 51,137.20/x
  3. Step 3: Cross multiply
    135,399.07x = 203,099.82 × 51,137.20
  4. Step 4: Simplify right side
    135,399.07x = 10,385,956,115.30
  5. Step 5: Solve for x
    x = 10,385,956,115.30/135,399.07
  6. Step 6: Final answer
    x = 76,706.26

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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.