Home / 127,480.88-191,243.20-38,743.36

Finding the Fourth Proportional to 127,480.88, 191,243.20 and 38,743.36

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Solution

The fourth proportional to 127,480.88, 191,243.20 and 38,743.36 is: 58,121.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,480.88 : 191,243.20 = 38,743.36 : x
  2. Step 2: Convert to fraction form
    127,480.88/191,243.20 = 38,743.36/x
  3. Step 3: Cross multiply
    127,480.88x = 191,243.20 × 38,743.36
  4. Step 4: Simplify right side
    127,480.88x = 7,409,404,145.15
  5. Step 5: Solve for x
    x = 7,409,404,145.15/127,480.88
  6. Step 6: Final answer
    x = 58,121.69

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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.