Home / 206,136.36-308,679.66-135,802.44

Finding the Fourth Proportional to 206,136.36, 308,679.66 and 135,802.44

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Solution

The fourth proportional to 206,136.36, 308,679.66 and 135,802.44 is: 203,357.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,136.36 : 308,679.66 = 135,802.44 : x
  2. Step 2: Convert to fraction form
    206,136.36/308,679.66 = 135,802.44/x
  3. Step 3: Cross multiply
    206,136.36x = 308,679.66 × 135,802.44
  4. Step 4: Simplify right side
    206,136.36x = 41,919,451,006.37
  5. Step 5: Solve for x
    x = 41,919,451,006.37/206,136.36
  6. Step 6: Final answer
    x = 203,357.87

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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.