Home / 203,720.15-281,120.46-113,071.70

Finding the Fourth Proportional to 203,720.15, 281,120.46 and 113,071.70

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Solution

The fourth proportional to 203,720.15, 281,120.46 and 113,071.70 is: 156,031.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,720.15 : 281,120.46 = 113,071.70 : x
  2. Step 2: Convert to fraction form
    203,720.15/281,120.46 = 113,071.70/x
  3. Step 3: Cross multiply
    203,720.15x = 281,120.46 × 113,071.70
  4. Step 4: Simplify right side
    203,720.15x = 31,786,768,316.98
  5. Step 5: Solve for x
    x = 31,786,768,316.98/203,720.15
  6. Step 6: Final answer
    x = 156,031.54

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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.