Home / 203,956.91-281,233.65-139,436.69

Finding the Fourth Proportional to 203,956.91, 281,233.65 and 139,436.69

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Solution

The fourth proportional to 203,956.91, 281,233.65 and 139,436.69 is: 192,267.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,956.91 : 281,233.65 = 139,436.69 : x
  2. Step 2: Convert to fraction form
    203,956.91/281,233.65 = 139,436.69/x
  3. Step 3: Cross multiply
    203,956.91x = 281,233.65 × 139,436.69
  4. Step 4: Simplify right side
    203,956.91x = 39,214,289,272.62
  5. Step 5: Solve for x
    x = 39,214,289,272.62/203,956.91
  6. Step 6: Final answer
    x = 192,267.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.