Home / 203,738.27-281,145.12-123,210.18

Finding the Fourth Proportional to 203,738.27, 281,145.12 and 123,210.18

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Solution

The fourth proportional to 203,738.27, 281,145.12 and 123,210.18 is: 170,021.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,738.27 : 281,145.12 = 123,210.18 : x
  2. Step 2: Convert to fraction form
    203,738.27/281,145.12 = 123,210.18/x
  3. Step 3: Cross multiply
    203,738.27x = 281,145.12 × 123,210.18
  4. Step 4: Simplify right side
    203,738.27x = 34,639,940,841.32
  5. Step 5: Solve for x
    x = 34,639,940,841.32/203,738.27
  6. Step 6: Final answer
    x = 170,021.77

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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.