Home / 203,124.20-280,311.54-111,243.04

Finding the Fourth Proportional to 203,124.20, 280,311.54 and 111,243.04

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Solution

The fourth proportional to 203,124.20, 280,311.54 and 111,243.04 is: 153,515.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,124.20 : 280,311.54 = 111,243.04 : x
  2. Step 2: Convert to fraction form
    203,124.20/280,311.54 = 111,243.04/x
  3. Step 3: Cross multiply
    203,124.20x = 280,311.54 × 111,243.04
  4. Step 4: Simplify right side
    203,124.20x = 31,182,707,856.68
  5. Step 5: Solve for x
    x = 31,182,707,856.68/203,124.20
  6. Step 6: Final answer
    x = 153,515.47

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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.