Home / 203,709.27-281,113.09-111,828.54

Finding the Fourth Proportional to 203,709.27, 281,113.09 and 111,828.54

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Solution

The fourth proportional to 203,709.27, 281,113.09 and 111,828.54 is: 154,320.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,709.27 : 281,113.09 = 111,828.54 : x
  2. Step 2: Convert to fraction form
    203,709.27/281,113.09 = 111,828.54/x
  3. Step 3: Cross multiply
    203,709.27x = 281,113.09 × 111,828.54
  4. Step 4: Simplify right side
    203,709.27x = 31,436,466,429.59
  5. Step 5: Solve for x
    x = 31,436,466,429.59/203,709.27
  6. Step 6: Final answer
    x = 154,320.25

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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.