Home / 160,778.20-221,618.16-126,731.44

Finding the Fourth Proportional to 160,778.20, 221,618.16 and 126,731.44

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Solution

The fourth proportional to 160,778.20, 221,618.16 and 126,731.44 is: 174,687.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,778.20 : 221,618.16 = 126,731.44 : x
  2. Step 2: Convert to fraction form
    160,778.20/221,618.16 = 126,731.44/x
  3. Step 3: Cross multiply
    160,778.20x = 221,618.16 × 126,731.44
  4. Step 4: Simplify right side
    160,778.20x = 28,085,988,546.95
  5. Step 5: Solve for x
    x = 28,085,988,546.95/160,778.20
  6. Step 6: Final answer
    x = 174,687.79

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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.