Home / 126,686.82-190,085.36-79,410.26

Finding the Fourth Proportional to 126,686.82, 190,085.36 and 79,410.26

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Solution

The fourth proportional to 126,686.82, 190,085.36 and 79,410.26 is: 119,149.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,686.82 : 190,085.36 = 79,410.26 : x
  2. Step 2: Convert to fraction form
    126,686.82/190,085.36 = 79,410.26/x
  3. Step 3: Cross multiply
    126,686.82x = 190,085.36 × 79,410.26
  4. Step 4: Simplify right side
    126,686.82x = 15,094,726,512.32
  5. Step 5: Solve for x
    x = 15,094,726,512.32/126,686.82
  6. Step 6: Final answer
    x = 119,149.94

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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.