Home / 127,067.36-175,279.66-79,237.68

Finding the Fourth Proportional to 127,067.36, 175,279.66 and 79,237.68

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Solution

The fourth proportional to 127,067.36, 175,279.66 and 79,237.68 is: 109,302.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,067.36 : 175,279.66 = 79,237.68 : x
  2. Step 2: Convert to fraction form
    127,067.36/175,279.66 = 79,237.68/x
  3. Step 3: Cross multiply
    127,067.36x = 175,279.66 × 79,237.68
  4. Step 4: Simplify right side
    127,067.36x = 13,888,753,609.59
  5. Step 5: Solve for x
    x = 13,888,753,609.59/127,067.36
  6. Step 6: Final answer
    x = 109,302.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.