Home / 486,160.53-729,240.79-131,174.55

Finding the Fourth Proportional to 486,160.53, 729,240.79 and 131,174.55

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Solution

The fourth proportional to 486,160.53, 729,240.79 and 131,174.55 is: 196,761.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,160.53 : 729,240.79 = 131,174.55 : x
  2. Step 2: Convert to fraction form
    486,160.53/729,240.79 = 131,174.55/x
  3. Step 3: Cross multiply
    486,160.53x = 729,240.79 × 131,174.55
  4. Step 4: Simplify right side
    486,160.53x = 95,657,832,469.89
  5. Step 5: Solve for x
    x = 95,657,832,469.89/486,160.53
  6. Step 6: Final answer
    x = 196,761.82

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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.