Home / 221,475.22-305,633.15-125,981.69

Finding the Fourth Proportional to 221,475.22, 305,633.15 and 125,981.69

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Solution

The fourth proportional to 221,475.22, 305,633.15 and 125,981.69 is: 173,853.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,475.22 : 305,633.15 = 125,981.69 : x
  2. Step 2: Convert to fraction form
    221,475.22/305,633.15 = 125,981.69/x
  3. Step 3: Cross multiply
    221,475.22x = 305,633.15 × 125,981.69
  4. Step 4: Simplify right side
    221,475.22x = 38,504,180,757.02
  5. Step 5: Solve for x
    x = 38,504,180,757.02/221,475.22
  6. Step 6: Final answer
    x = 173,853.22

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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.