Home / 185,123.27-255,469.74-100,240.58

Finding the Fourth Proportional to 185,123.27, 255,469.74 and 100,240.58

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Solution

The fourth proportional to 185,123.27, 255,469.74 and 100,240.58 is: 138,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,123.27 : 255,469.74 = 100,240.58 : x
  2. Step 2: Convert to fraction form
    185,123.27/255,469.74 = 100,240.58/x
  3. Step 3: Cross multiply
    185,123.27x = 255,469.74 × 100,240.58
  4. Step 4: Simplify right side
    185,123.27x = 25,608,434,910.05
  5. Step 5: Solve for x
    x = 25,608,434,910.05/185,123.27
  6. Step 6: Final answer
    x = 138,331.80

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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.