Home / 220,076.07-303,706.22-129,435.85

Finding the Fourth Proportional to 220,076.07, 303,706.22 and 129,435.85

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Solution

The fourth proportional to 220,076.07, 303,706.22 and 129,435.85 is: 178,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,076.07 : 303,706.22 = 129,435.85 : x
  2. Step 2: Convert to fraction form
    220,076.07/303,706.22 = 129,435.85/x
  3. Step 3: Cross multiply
    220,076.07x = 303,706.22 × 129,435.85
  4. Step 4: Simplify right side
    220,076.07x = 39,310,472,735.99
  5. Step 5: Solve for x
    x = 39,310,472,735.99/220,076.07
  6. Step 6: Final answer
    x = 178,622.20

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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.