Home / 216,961.56-325,493.94-90,531.55

Finding the Fourth Proportional to 216,961.56, 325,493.94 and 90,531.55

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Solution

The fourth proportional to 216,961.56, 325,493.94 and 90,531.55 is: 135,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,961.56 : 325,493.94 = 90,531.55 : x
  2. Step 2: Convert to fraction form
    216,961.56/325,493.94 = 90,531.55/x
  3. Step 3: Cross multiply
    216,961.56x = 325,493.94 × 90,531.55
  4. Step 4: Simplify right side
    216,961.56x = 29,467,470,734.72
  5. Step 5: Solve for x
    x = 29,467,470,734.72/216,961.56
  6. Step 6: Final answer
    x = 135,818.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.