Home / 203,538.15-280,899.90-112,923.27

Finding the Fourth Proportional to 203,538.15, 280,899.90 and 112,923.27

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Solution

The fourth proportional to 203,538.15, 280,899.90 and 112,923.27 is: 155,843.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,538.15 : 280,899.90 = 112,923.27 : x
  2. Step 2: Convert to fraction form
    203,538.15/280,899.90 = 112,923.27/x
  3. Step 3: Cross multiply
    203,538.15x = 280,899.90 × 112,923.27
  4. Step 4: Simplify right side
    203,538.15x = 31,720,135,250.67
  5. Step 5: Solve for x
    x = 31,720,135,250.67/203,538.15
  6. Step 6: Final answer
    x = 155,843.68

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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.