Home / 129,665.80-194,498.70-36,171.55

Finding the Fourth Proportional to 129,665.80, 194,498.70 and 36,171.55

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Solution

The fourth proportional to 129,665.80, 194,498.70 and 36,171.55 is: 54,257.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,665.80 : 194,498.70 = 36,171.55 : x
  2. Step 2: Convert to fraction form
    129,665.80/194,498.70 = 36,171.55/x
  3. Step 3: Cross multiply
    129,665.80x = 194,498.70 × 36,171.55
  4. Step 4: Simplify right side
    129,665.80x = 7,035,319,451.99
  5. Step 5: Solve for x
    x = 7,035,319,451.99/129,665.80
  6. Step 6: Final answer
    x = 54,257.33

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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.