Home / 203,120.52-280,155.24-131,445.24

Finding the Fourth Proportional to 203,120.52, 280,155.24 and 131,445.24

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Solution

The fourth proportional to 203,120.52, 280,155.24 and 131,445.24 is: 181,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,120.52 : 280,155.24 = 131,445.24 : x
  2. Step 2: Convert to fraction form
    203,120.52/280,155.24 = 131,445.24/x
  3. Step 3: Cross multiply
    203,120.52x = 280,155.24 × 131,445.24
  4. Step 4: Simplify right side
    203,120.52x = 36,825,072,759.06
  5. Step 5: Solve for x
    x = 36,825,072,759.06/203,120.52
  6. Step 6: Final answer
    x = 181,296.66

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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.