Home / 214,785.35-322,179.27-72,631.64

Finding the Fourth Proportional to 214,785.35, 322,179.27 and 72,631.64

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Solution

The fourth proportional to 214,785.35, 322,179.27 and 72,631.64 is: 108,947.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,785.35 : 322,179.27 = 72,631.64 : x
  2. Step 2: Convert to fraction form
    214,785.35/322,179.27 = 72,631.64/x
  3. Step 3: Cross multiply
    214,785.35x = 322,179.27 × 72,631.64
  4. Step 4: Simplify right side
    214,785.35x = 23,400,407,883.48
  5. Step 5: Solve for x
    x = 23,400,407,883.48/214,785.35
  6. Step 6: Final answer
    x = 108,947.88

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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.