Home / 135,661.35-203,377.20-51,375.05

Finding the Fourth Proportional to 135,661.35, 203,377.20 and 51,375.05

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Solution

The fourth proportional to 135,661.35, 203,377.20 and 51,375.05 is: 77,019.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,661.35 : 203,377.20 = 51,375.05 : x
  2. Step 2: Convert to fraction form
    135,661.35/203,377.20 = 51,375.05/x
  3. Step 3: Cross multiply
    135,661.35x = 203,377.20 × 51,375.05
  4. Step 4: Simplify right side
    135,661.35x = 10,448,513,818.86
  5. Step 5: Solve for x
    x = 10,448,513,818.86/135,661.35
  6. Step 6: Final answer
    x = 77,019.09

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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.