Home / 204,330.85-306,493.19-91,931.69

Finding the Fourth Proportional to 204,330.85, 306,493.19 and 91,931.69

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Solution

The fourth proportional to 204,330.85, 306,493.19 and 91,931.69 is: 137,896.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,330.85 : 306,493.19 = 91,931.69 : x
  2. Step 2: Convert to fraction form
    204,330.85/306,493.19 = 91,931.69/x
  3. Step 3: Cross multiply
    204,330.85x = 306,493.19 × 91,931.69
  4. Step 4: Simplify right side
    204,330.85x = 28,176,436,930.19
  5. Step 5: Solve for x
    x = 28,176,436,930.19/204,330.85
  6. Step 6: Final answer
    x = 137,896.15

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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.