Home / 203,911.43-281,633.36-135,816.35

Finding the Fourth Proportional to 203,911.43, 281,633.36 and 135,816.35

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Solution

The fourth proportional to 203,911.43, 281,633.36 and 135,816.35 is: 187,583.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,911.43 : 281,633.36 = 135,816.35 : x
  2. Step 2: Convert to fraction form
    203,911.43/281,633.36 = 135,816.35/x
  3. Step 3: Cross multiply
    203,911.43x = 281,633.36 × 135,816.35
  4. Step 4: Simplify right side
    203,911.43x = 38,250,412,906.19
  5. Step 5: Solve for x
    x = 38,250,412,906.19/203,911.43
  6. Step 6: Final answer
    x = 187,583.47

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1.5x scale

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.