Home / 204,002.55-306,104.40-91,762.20

Finding the Fourth Proportional to 204,002.55, 306,104.40 and 91,762.20

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Solution

The fourth proportional to 204,002.55, 306,104.40 and 91,762.20 is: 137,688.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,002.55 : 306,104.40 = 91,762.20 : x
  2. Step 2: Convert to fraction form
    204,002.55/306,104.40 = 91,762.20/x
  3. Step 3: Cross multiply
    204,002.55x = 306,104.40 × 91,762.20
  4. Step 4: Simplify right side
    204,002.55x = 28,088,813,173.68
  5. Step 5: Solve for x
    x = 28,088,813,173.68/204,002.55
  6. Step 6: Final answer
    x = 137,688.54

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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.