Home / 203,159.40-303,503.65-131,498.23

Finding the Fourth Proportional to 203,159.40, 303,503.65 and 131,498.23

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Solution

The fourth proportional to 203,159.40, 303,503.65 and 131,498.23 is: 196,447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,159.40 : 303,503.65 = 131,498.23 : x
  2. Step 2: Convert to fraction form
    203,159.40/303,503.65 = 131,498.23/x
  3. Step 3: Cross multiply
    203,159.40x = 303,503.65 × 131,498.23
  4. Step 4: Simplify right side
    203,159.40x = 39,910,192,773.54
  5. Step 5: Solve for x
    x = 39,910,192,773.54/203,159.40
  6. Step 6: Final answer
    x = 196,447.68

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.