Home / 214,662.78-296,181.99-128,635.74

Finding the Fourth Proportional to 214,662.78, 296,181.99 and 128,635.74

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Solution

The fourth proportional to 214,662.78, 296,181.99 and 128,635.74 is: 177,485.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,662.78 : 296,181.99 = 128,635.74 : x
  2. Step 2: Convert to fraction form
    214,662.78/296,181.99 = 128,635.74/x
  3. Step 3: Cross multiply
    214,662.78x = 296,181.99 × 128,635.74
  4. Step 4: Simplify right side
    214,662.78x = 38,099,589,458.32
  5. Step 5: Solve for x
    x = 38,099,589,458.32/214,662.78
  6. Step 6: Final answer
    x = 177,485.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.