Home / 126,949.22-190,385.40-38,179.16

Finding the Fourth Proportional to 126,949.22, 190,385.40 and 38,179.16

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Solution

The fourth proportional to 126,949.22, 190,385.40 and 38,179.16 is: 57,257.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,949.22 : 190,385.40 = 38,179.16 : x
  2. Step 2: Convert to fraction form
    126,949.22/190,385.40 = 38,179.16/x
  3. Step 3: Cross multiply
    126,949.22x = 190,385.40 × 38,179.16
  4. Step 4: Simplify right side
    126,949.22x = 7,268,754,648.26
  5. Step 5: Solve for x
    x = 7,268,754,648.26/126,949.22
  6. Step 6: Final answer
    x = 57,257.18

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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.