Home / 214,977.90-322,236.45-81,806.70

Finding the Fourth Proportional to 214,977.90, 322,236.45 and 81,806.70

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Solution

The fourth proportional to 214,977.90, 322,236.45 and 81,806.70 is: 122,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,977.90 : 322,236.45 = 81,806.70 : x
  2. Step 2: Convert to fraction form
    214,977.90/322,236.45 = 81,806.70/x
  3. Step 3: Cross multiply
    214,977.90x = 322,236.45 × 81,806.70
  4. Step 4: Simplify right side
    214,977.90x = 26,361,100,594.22
  5. Step 5: Solve for x
    x = 26,361,100,594.22/214,977.90
  6. Step 6: Final answer
    x = 122,622.37

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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.