Home / 127,180.20-190,625.16-51,230.09

Finding the Fourth Proportional to 127,180.20, 190,625.16 and 51,230.09

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Solution

The fourth proportional to 127,180.20, 190,625.16 and 51,230.09 is: 76,786.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,180.20 : 190,625.16 = 51,230.09 : x
  2. Step 2: Convert to fraction form
    127,180.20/190,625.16 = 51,230.09/x
  3. Step 3: Cross multiply
    127,180.20x = 190,625.16 × 51,230.09
  4. Step 4: Simplify right side
    127,180.20x = 9,765,744,103.06
  5. Step 5: Solve for x
    x = 9,765,744,103.06/127,180.20
  6. Step 6: Final answer
    x = 76,786.67

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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.