Home / 204,026.55-306,140.40-91,786.20

Finding the Fourth Proportional to 204,026.55, 306,140.40 and 91,786.20

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Solution

The fourth proportional to 204,026.55, 306,140.40 and 91,786.20 is: 137,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,026.55 : 306,140.40 = 91,786.20 : x
  2. Step 2: Convert to fraction form
    204,026.55/306,140.40 = 91,786.20/x
  3. Step 3: Cross multiply
    204,026.55x = 306,140.40 × 91,786.20
  4. Step 4: Simplify right side
    204,026.55x = 28,099,463,982.48
  5. Step 5: Solve for x
    x = 28,099,463,982.48/204,026.55
  6. Step 6: Final answer
    x = 137,724.55

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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.