Home / 221,581.44-305,771.76-126,079.20

Finding the Fourth Proportional to 221,581.44, 305,771.76 and 126,079.20

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Solution

The fourth proportional to 221,581.44, 305,771.76 and 126,079.20 is: 173,983.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,581.44 : 305,771.76 = 126,079.20 : x
  2. Step 2: Convert to fraction form
    221,581.44/305,771.76 = 126,079.20/x
  3. Step 3: Cross multiply
    221,581.44x = 305,771.76 × 126,079.20
  4. Step 4: Simplify right side
    221,581.44x = 38,551,458,883.39
  5. Step 5: Solve for x
    x = 38,551,458,883.39/221,581.44
  6. Step 6: Final answer
    x = 173,983.25

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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.