Home / 127,229.09-190,880.57-51,288.44

Finding the Fourth Proportional to 127,229.09, 190,880.57 and 51,288.44

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Solution

The fourth proportional to 127,229.09, 190,880.57 and 51,288.44 is: 76,947.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,229.09 : 190,880.57 = 51,288.44 : x
  2. Step 2: Convert to fraction form
    127,229.09/190,880.57 = 51,288.44/x
  3. Step 3: Cross multiply
    127,229.09x = 190,880.57 × 51,288.44
  4. Step 4: Simplify right side
    127,229.09x = 9,789,965,450.77
  5. Step 5: Solve for x
    x = 9,789,965,450.77/127,229.09
  6. Step 6: Final answer
    x = 76,947.54

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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.