Home / 214,115.80-320,828.10-135,088.60

Finding the Fourth Proportional to 214,115.80, 320,828.10 and 135,088.60

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Solution

The fourth proportional to 214,115.80, 320,828.10 and 135,088.60 is: 202,414.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,115.80 : 320,828.10 = 135,088.60 : x
  2. Step 2: Convert to fraction form
    214,115.80/320,828.10 = 135,088.60/x
  3. Step 3: Cross multiply
    214,115.80x = 320,828.10 × 135,088.60
  4. Step 4: Simplify right side
    214,115.80x = 43,340,218,869.66
  5. Step 5: Solve for x
    x = 43,340,218,869.66/214,115.80
  6. Step 6: Final answer
    x = 202,414.86

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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.