Home / 221,481.22-305,622.57-125,968.90

Finding the Fourth Proportional to 221,481.22, 305,622.57 and 125,968.90

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Solution

The fourth proportional to 221,481.22, 305,622.57 and 125,968.90 is: 173,824.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,481.22 : 305,622.57 = 125,968.90 : x
  2. Step 2: Convert to fraction form
    221,481.22/305,622.57 = 125,968.90/x
  3. Step 3: Cross multiply
    221,481.22x = 305,622.57 × 125,968.90
  4. Step 4: Simplify right side
    221,481.22x = 38,498,938,958.07
  5. Step 5: Solve for x
    x = 38,498,938,958.07/221,481.22
  6. Step 6: Final answer
    x = 173,824.85

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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.