Home / 205,204.42-307,903.83-142,121.62

Finding the Fourth Proportional to 205,204.42, 307,903.83 and 142,121.62

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Solution

The fourth proportional to 205,204.42, 307,903.83 and 142,121.62 is: 213,249.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,204.42 : 307,903.83 = 142,121.62 : x
  2. Step 2: Convert to fraction form
    205,204.42/307,903.83 = 142,121.62/x
  3. Step 3: Cross multiply
    205,204.42x = 307,903.83 × 142,121.62
  4. Step 4: Simplify right side
    205,204.42x = 43,759,791,123.80
  5. Step 5: Solve for x
    x = 43,759,791,123.80/205,204.42
  6. Step 6: Final answer
    x = 213,249.75

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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.