Home / 89,249.46-133,874.32-66,783.56

Finding the Fourth Proportional to 89,249.46, 133,874.32 and 66,783.56

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Solution

The fourth proportional to 89,249.46, 133,874.32 and 66,783.56 is: 100,175.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,249.46 : 133,874.32 = 66,783.56 : x
  2. Step 2: Convert to fraction form
    89,249.46/133,874.32 = 66,783.56/x
  3. Step 3: Cross multiply
    89,249.46x = 133,874.32 × 66,783.56
  4. Step 4: Simplify right side
    89,249.46x = 8,940,603,682.18
  5. Step 5: Solve for x
    x = 8,940,603,682.18/89,249.46
  6. Step 6: Final answer
    x = 100,175.44

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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.