Home / 149,936.90-225,016.72-71,051.40

Finding the Fourth Proportional to 149,936.90, 225,016.72 and 71,051.40

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Solution

The fourth proportional to 149,936.90, 225,016.72 and 71,051.40 is: 106,629.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,936.90 : 225,016.72 = 71,051.40 : x
  2. Step 2: Convert to fraction form
    149,936.90/225,016.72 = 71,051.40/x
  3. Step 3: Cross multiply
    149,936.90x = 225,016.72 × 71,051.40
  4. Step 4: Simplify right side
    149,936.90x = 15,987,752,801.78
  5. Step 5: Solve for x
    x = 15,987,752,801.78/149,936.90
  6. Step 6: Final answer
    x = 106,629.88

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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.