Home / 136,121.28-204,150.60-51,891

Finding the Fourth Proportional to 136,121.28, 204,150.60 and 51,891

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Solution

The fourth proportional to 136,121.28, 204,150.60 and 51,891 is: 77,824.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,121.28 : 204,150.60 = 51,891 : x
  2. Step 2: Convert to fraction form
    136,121.28/204,150.60 = 51,891/x
  3. Step 3: Cross multiply
    136,121.28x = 204,150.60 × 51,891
  4. Step 4: Simplify right side
    136,121.28x = 10,593,578,784.60
  5. Step 5: Solve for x
    x = 10,593,578,784.60/136,121.28
  6. Step 6: Final answer
    x = 77,824.56

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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.