Home / 204,208.72-306,001.22-85,815.34

Finding the Fourth Proportional to 204,208.72, 306,001.22 and 85,815.34

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Solution

The fourth proportional to 204,208.72, 306,001.22 and 85,815.34 is: 128,591.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,208.72 : 306,001.22 = 85,815.34 : x
  2. Step 2: Convert to fraction form
    204,208.72/306,001.22 = 85,815.34/x
  3. Step 3: Cross multiply
    204,208.72x = 306,001.22 × 85,815.34
  4. Step 4: Simplify right side
    204,208.72x = 26,259,598,734.71
  5. Step 5: Solve for x
    x = 26,259,598,734.71/204,208.72
  6. Step 6: Final answer
    x = 128,591.96

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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.