Home / 204,375.15-306,250.43-85,981.59

Finding the Fourth Proportional to 204,375.15, 306,250.43 and 85,981.59

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Solution

The fourth proportional to 204,375.15, 306,250.43 and 85,981.59 is: 128,841.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,375.15 : 306,250.43 = 85,981.59 : x
  2. Step 2: Convert to fraction form
    204,375.15/306,250.43 = 85,981.59/x
  3. Step 3: Cross multiply
    204,375.15x = 306,250.43 × 85,981.59
  4. Step 4: Simplify right side
    204,375.15x = 26,331,898,479.68
  5. Step 5: Solve for x
    x = 26,331,898,479.68/204,375.15
  6. Step 6: Final answer
    x = 128,841.00

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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.