Home / 203,296.45-280,544.91-112,651.62

Finding the Fourth Proportional to 203,296.45, 280,544.91 and 112,651.62

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Solution

The fourth proportional to 203,296.45, 280,544.91 and 112,651.62 is: 155,456.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,296.45 : 280,544.91 = 112,651.62 : x
  2. Step 2: Convert to fraction form
    203,296.45/280,544.91 = 112,651.62/x
  3. Step 3: Cross multiply
    203,296.45x = 280,544.91 × 112,651.62
  4. Step 4: Simplify right side
    203,296.45x = 31,603,838,594.25
  5. Step 5: Solve for x
    x = 31,603,838,594.25/203,296.45
  6. Step 6: Final answer
    x = 155,456.91

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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.