Home / 203,170.38-280,365.39-112,520.22

Finding the Fourth Proportional to 203,170.38, 280,365.39 and 112,520.22

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Solution

The fourth proportional to 203,170.38, 280,365.39 and 112,520.22 is: 155,272.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,170.38 : 280,365.39 = 112,520.22 : x
  2. Step 2: Convert to fraction form
    203,170.38/280,365.39 = 112,520.22/x
  3. Step 3: Cross multiply
    203,170.38x = 280,365.39 × 112,520.22
  4. Step 4: Simplify right side
    203,170.38x = 31,546,775,363.19
  5. Step 5: Solve for x
    x = 31,546,775,363.19/203,170.38
  6. Step 6: Final answer
    x = 155,272.51

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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.