Home / 486,171.90-729,257.85-131,185.35

Finding the Fourth Proportional to 486,171.90, 729,257.85 and 131,185.35

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Solution

The fourth proportional to 486,171.90, 729,257.85 and 131,185.35 is: 196,778.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,171.90 : 729,257.85 = 131,185.35 : x
  2. Step 2: Convert to fraction form
    486,171.90/729,257.85 = 131,185.35/x
  3. Step 3: Cross multiply
    486,171.90x = 729,257.85 × 131,185.35
  4. Step 4: Simplify right side
    486,171.90x = 95,667,946,292.50
  5. Step 5: Solve for x
    x = 95,667,946,292.50/486,171.90
  6. Step 6: Final answer
    x = 196,778.03

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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.