Home / 149,010.44-205,634.64-81,027.34

Finding the Fourth Proportional to 149,010.44, 205,634.64 and 81,027.34

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Solution

The fourth proportional to 149,010.44, 205,634.64 and 81,027.34 is: 111,817.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,010.44 : 205,634.64 = 81,027.34 : x
  2. Step 2: Convert to fraction form
    149,010.44/205,634.64 = 81,027.34/x
  3. Step 3: Cross multiply
    149,010.44x = 205,634.64 × 81,027.34
  4. Step 4: Simplify right side
    149,010.44x = 16,662,027,891.06
  5. Step 5: Solve for x
    x = 16,662,027,891.06/149,010.44
  6. Step 6: Final answer
    x = 111,817.86

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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.