Home / 194,049.36-291,183.12-75,728.88

Finding the Fourth Proportional to 194,049.36, 291,183.12 and 75,728.88

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Solution

The fourth proportional to 194,049.36, 291,183.12 and 75,728.88 is: 113,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,049.36 : 291,183.12 = 75,728.88 : x
  2. Step 2: Convert to fraction form
    194,049.36/291,183.12 = 75,728.88/x
  3. Step 3: Cross multiply
    194,049.36x = 291,183.12 × 75,728.88
  4. Step 4: Simplify right side
    194,049.36x = 22,050,971,552.51
  5. Step 5: Solve for x
    x = 22,050,971,552.51/194,049.36
  6. Step 6: Final answer
    x = 113,635.89

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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.