Home / 203,985.97-281,247.52-135,853.57

Finding the Fourth Proportional to 203,985.97, 281,247.52 and 135,853.57

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Solution

The fourth proportional to 203,985.97, 281,247.52 and 135,853.57 is: 187,309.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,985.97 : 281,247.52 = 135,853.57 : x
  2. Step 2: Convert to fraction form
    203,985.97/281,247.52 = 135,853.57/x
  3. Step 3: Cross multiply
    203,985.97x = 281,247.52 × 135,853.57
  4. Step 4: Simplify right side
    203,985.97x = 38,208,479,112.34
  5. Step 5: Solve for x
    x = 38,208,479,112.34/203,985.97
  6. Step 6: Final answer
    x = 187,309.35

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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.