Home / 129,780.92-194,671.56-36,286.58

Finding the Fourth Proportional to 129,780.92, 194,671.56 and 36,286.58

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Solution

The fourth proportional to 129,780.92, 194,671.56 and 36,286.58 is: 54,429.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,780.92 : 194,671.56 = 36,286.58 : x
  2. Step 2: Convert to fraction form
    129,780.92/194,671.56 = 36,286.58/x
  3. Step 3: Cross multiply
    129,780.92x = 194,671.56 × 36,286.58
  4. Step 4: Simplify right side
    129,780.92x = 7,063,965,135.66
  5. Step 5: Solve for x
    x = 7,063,965,135.66/129,780.92
  6. Step 6: Final answer
    x = 54,429.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.