Home / 203,183.12-280,312.56-126,657.56

Finding the Fourth Proportional to 203,183.12, 280,312.56 and 126,657.56

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Solution

The fourth proportional to 203,183.12, 280,312.56 and 126,657.56 is: 174,737.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,183.12 : 280,312.56 = 126,657.56 : x
  2. Step 2: Convert to fraction form
    203,183.12/280,312.56 = 126,657.56/x
  3. Step 3: Cross multiply
    203,183.12x = 280,312.56 × 126,657.56
  4. Step 4: Simplify right side
    203,183.12x = 35,503,704,886.95
  5. Step 5: Solve for x
    x = 35,503,704,886.95/203,183.12
  6. Step 6: Final answer
    x = 174,737.47

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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.