Home / 203,825.80-281,081.64-158,423.68

Finding the Fourth Proportional to 203,825.80, 281,081.64 and 158,423.68

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Solution

The fourth proportional to 203,825.80, 281,081.64 and 158,423.68 is: 218,470.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,825.80 : 281,081.64 = 158,423.68 : x
  2. Step 2: Convert to fraction form
    203,825.80/281,081.64 = 158,423.68/x
  3. Step 3: Cross multiply
    203,825.80x = 281,081.64 × 158,423.68
  4. Step 4: Simplify right side
    203,825.80x = 44,529,987,789.24
  5. Step 5: Solve for x
    x = 44,529,987,789.24/203,825.80
  6. Step 6: Final answer
    x = 218,470.81

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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.