Home / 203,730.20-281,143.32-113,080.88

Finding the Fourth Proportional to 203,730.20, 281,143.32 and 113,080.88

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Solution

The fourth proportional to 203,730.20, 281,143.32 and 113,080.88 is: 156,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,730.20 : 281,143.32 = 113,080.88 : x
  2. Step 2: Convert to fraction form
    203,730.20/281,143.32 = 113,080.88/x
  3. Step 3: Cross multiply
    203,730.20x = 281,143.32 × 113,080.88
  4. Step 4: Simplify right side
    203,730.20x = 31,791,934,031.72
  5. Step 5: Solve for x
    x = 31,791,934,031.72/203,730.20
  6. Step 6: Final answer
    x = 156,049.20

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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.