Home / 204,718.11-307,015.20-71,573.55

Finding the Fourth Proportional to 204,718.11, 307,015.20 and 71,573.55

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Solution

The fourth proportional to 204,718.11, 307,015.20 and 71,573.55 is: 107,338.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,718.11 : 307,015.20 = 71,573.55 : x
  2. Step 2: Convert to fraction form
    204,718.11/307,015.20 = 71,573.55/x
  3. Step 3: Cross multiply
    204,718.11x = 307,015.20 × 71,573.55
  4. Step 4: Simplify right side
    204,718.11x = 21,974,167,767.96
  5. Step 5: Solve for x
    x = 21,974,167,767.96/204,718.11
  6. Step 6: Final answer
    x = 107,338.66

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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.