Home / 126,193.22-174,146.30-72,481.70

Finding the Fourth Proportional to 126,193.22, 174,146.30 and 72,481.70

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Solution

The fourth proportional to 126,193.22, 174,146.30 and 72,481.70 is: 100,024.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,193.22 : 174,146.30 = 72,481.70 : x
  2. Step 2: Convert to fraction form
    126,193.22/174,146.30 = 72,481.70/x
  3. Step 3: Cross multiply
    126,193.22x = 174,146.30 × 72,481.70
  4. Step 4: Simplify right side
    126,193.22x = 12,622,419,872.71
  5. Step 5: Solve for x
    x = 12,622,419,872.71/126,193.22
  6. Step 6: Final answer
    x = 100,024.55

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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.