Home / 204,028.55-306,143.40-91,788.20

Finding the Fourth Proportional to 204,028.55, 306,143.40 and 91,788.20

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Solution

The fourth proportional to 204,028.55, 306,143.40 and 91,788.20 is: 137,727.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,028.55 : 306,143.40 = 91,788.20 : x
  2. Step 2: Convert to fraction form
    204,028.55/306,143.40 = 91,788.20/x
  3. Step 3: Cross multiply
    204,028.55x = 306,143.40 × 91,788.20
  4. Step 4: Simplify right side
    204,028.55x = 28,100,351,627.88
  5. Step 5: Solve for x
    x = 28,100,351,627.88/204,028.55
  6. Step 6: Final answer
    x = 137,727.55

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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.