Home / 126,997.50-190,610.47-67,883.70

Finding the Fourth Proportional to 126,997.50, 190,610.47 and 67,883.70

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Solution

The fourth proportional to 126,997.50, 190,610.47 and 67,883.70 is: 101,886.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,997.50 : 190,610.47 = 67,883.70 : x
  2. Step 2: Convert to fraction form
    126,997.50/190,610.47 = 67,883.70/x
  3. Step 3: Cross multiply
    126,997.50x = 190,610.47 × 67,883.70
  4. Step 4: Simplify right side
    126,997.50x = 12,939,344,380.14
  5. Step 5: Solve for x
    x = 12,939,344,380.14/126,997.50
  6. Step 6: Final answer
    x = 101,886.60

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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.