Home / 126,770.40-190,131.30-38,026.80

Finding the Fourth Proportional to 126,770.40, 190,131.30 and 38,026.80

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Solution

The fourth proportional to 126,770.40, 190,131.30 and 38,026.80 is: 57,032.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,770.40 : 190,131.30 = 38,026.80 : x
  2. Step 2: Convert to fraction form
    126,770.40/190,131.30 = 38,026.80/x
  3. Step 3: Cross multiply
    126,770.40x = 190,131.30 × 38,026.80
  4. Step 4: Simplify right side
    126,770.40x = 7,230,084,918.84
  5. Step 5: Solve for x
    x = 7,230,084,918.84/126,770.40
  6. Step 6: Final answer
    x = 57,032.91

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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.