Home / 129,845.70-194,914.35-100,394.10

Finding the Fourth Proportional to 129,845.70, 194,914.35 and 100,394.10

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Solution

The fourth proportional to 129,845.70, 194,914.35 and 100,394.10 is: 150,703.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,845.70 : 194,914.35 = 100,394.10 : x
  2. Step 2: Convert to fraction form
    129,845.70/194,914.35 = 100,394.10/x
  3. Step 3: Cross multiply
    129,845.70x = 194,914.35 × 100,394.10
  4. Step 4: Simplify right side
    129,845.70x = 19,568,250,745.34
  5. Step 5: Solve for x
    x = 19,568,250,745.34/129,845.70
  6. Step 6: Final answer
    x = 150,703.88

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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.