Home / 204,845.64-307,057.32-78,451.38

Finding the Fourth Proportional to 204,845.64, 307,057.32 and 78,451.38

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Solution

The fourth proportional to 204,845.64, 307,057.32 and 78,451.38 is: 117,596.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,845.64 : 307,057.32 = 78,451.38 : x
  2. Step 2: Convert to fraction form
    204,845.64/307,057.32 = 78,451.38/x
  3. Step 3: Cross multiply
    204,845.64x = 307,057.32 × 78,451.38
  4. Step 4: Simplify right side
    204,845.64x = 24,089,070,493.10
  5. Step 5: Solve for x
    x = 24,089,070,493.10/204,845.64
  6. Step 6: Final answer
    x = 117,596.21

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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.