Home / 486,162.78-729,244.16-131,176.79

Finding the Fourth Proportional to 486,162.78, 729,244.16 and 131,176.79

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Solution

The fourth proportional to 486,162.78, 729,244.16 and 131,176.79 is: 196,765.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,162.78 : 729,244.16 = 131,176.79 : x
  2. Step 2: Convert to fraction form
    486,162.78/729,244.16 = 131,176.79/x
  3. Step 3: Cross multiply
    486,162.78x = 729,244.16 × 131,176.79
  4. Step 4: Simplify right side
    486,162.78x = 95,659,908,035.05
  5. Step 5: Solve for x
    x = 95,659,908,035.05/486,162.78
  6. Step 6: Final answer
    x = 196,765.18

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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.