Home / 149,749.54-206,872.96-129,571.38

Finding the Fourth Proportional to 149,749.54, 206,872.96 and 129,571.38

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Solution

The fourth proportional to 149,749.54, 206,872.96 and 129,571.38 is: 178,997.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,749.54 : 206,872.96 = 129,571.38 : x
  2. Step 2: Convert to fraction form
    149,749.54/206,872.96 = 129,571.38/x
  3. Step 3: Cross multiply
    149,749.54x = 206,872.96 × 129,571.38
  4. Step 4: Simplify right side
    149,749.54x = 26,804,814,911.88
  5. Step 5: Solve for x
    x = 26,804,814,911.88/149,749.54
  6. Step 6: Final answer
    x = 178,997.64

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1.5x scale

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.