Home / 129,515.85-194,284.70-36,021.60

Finding the Fourth Proportional to 129,515.85, 194,284.70 and 36,021.60

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Solution

The fourth proportional to 129,515.85, 194,284.70 and 36,021.60 is: 54,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,515.85 : 194,284.70 = 36,021.60 : x
  2. Step 2: Convert to fraction form
    129,515.85/194,284.70 = 36,021.60/x
  3. Step 3: Cross multiply
    129,515.85x = 194,284.70 × 36,021.60
  4. Step 4: Simplify right side
    129,515.85x = 6,998,444,778.10
  5. Step 5: Solve for x
    x = 6,998,444,778.10/129,515.85
  6. Step 6: Final answer
    x = 54,035.43

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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.