Home / 129,623.20-194,410.80-36,109.60

Finding the Fourth Proportional to 129,623.20, 194,410.80 and 36,109.60

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Solution

The fourth proportional to 129,623.20, 194,410.80 and 36,109.60 is: 54,157.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,623.20 : 194,410.80 = 36,109.60 : x
  2. Step 2: Convert to fraction form
    129,623.20/194,410.80 = 36,109.60/x
  3. Step 3: Cross multiply
    129,623.20x = 194,410.80 × 36,109.60
  4. Step 4: Simplify right side
    129,623.20x = 7,020,096,223.68
  5. Step 5: Solve for x
    x = 7,020,096,223.68/129,623.20
  6. Step 6: Final answer
    x = 54,157.71

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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.