Home / 203,076.15-280,255.41-112,442.09

Finding the Fourth Proportional to 203,076.15, 280,255.41 and 112,442.09

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Solution

The fourth proportional to 203,076.15, 280,255.41 and 112,442.09 is: 155,175.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,076.15 : 280,255.41 = 112,442.09 : x
  2. Step 2: Convert to fraction form
    203,076.15/280,255.41 = 112,442.09/x
  3. Step 3: Cross multiply
    203,076.15x = 280,255.41 × 112,442.09
  4. Step 4: Simplify right side
    203,076.15x = 31,512,502,632.93
  5. Step 5: Solve for x
    x = 31,512,502,632.93/203,076.15
  6. Step 6: Final answer
    x = 155,175.79

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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.