Home / 203,029.72-280,177.61-112,383.74

Finding the Fourth Proportional to 203,029.72, 280,177.61 and 112,383.74

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Solution

The fourth proportional to 203,029.72, 280,177.61 and 112,383.74 is: 155,087.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,029.72 : 280,177.61 = 112,383.74 : x
  2. Step 2: Convert to fraction form
    203,029.72/280,177.61 = 112,383.74/x
  3. Step 3: Cross multiply
    203,029.72x = 280,177.61 × 112,383.74
  4. Step 4: Simplify right side
    203,029.72x = 31,487,407,676.06
  5. Step 5: Solve for x
    x = 31,487,407,676.06/203,029.72
  6. Step 6: Final answer
    x = 155,087.68

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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.