Home / 203,639.22-281,023.65-112,995.54

Finding the Fourth Proportional to 203,639.22, 281,023.65 and 112,995.54

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Solution

The fourth proportional to 203,639.22, 281,023.65 and 112,995.54 is: 155,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,639.22 : 281,023.65 = 112,995.54 : x
  2. Step 2: Convert to fraction form
    203,639.22/281,023.65 = 112,995.54/x
  3. Step 3: Cross multiply
    203,639.22x = 281,023.65 × 112,995.54
  4. Step 4: Simplify right side
    203,639.22x = 31,754,419,084.52
  5. Step 5: Solve for x
    x = 31,754,419,084.52/203,639.22
  6. Step 6: Final answer
    x = 155,934.69

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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.