Home / 127,207.88-190,791.66-76,634.36

Finding the Fourth Proportional to 127,207.88, 190,791.66 and 76,634.36

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Solution

The fourth proportional to 127,207.88, 190,791.66 and 76,634.36 is: 114,939.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,207.88 : 190,791.66 = 76,634.36 : x
  2. Step 2: Convert to fraction form
    127,207.88/190,791.66 = 76,634.36/x
  3. Step 3: Cross multiply
    127,207.88x = 190,791.66 × 76,634.36
  4. Step 4: Simplify right side
    127,207.88x = 14,621,196,757.44
  5. Step 5: Solve for x
    x = 14,621,196,757.44/127,207.88
  6. Step 6: Final answer
    x = 114,939.39

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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.