Home / 221,375.04-331,865.34-81,100.86

Finding the Fourth Proportional to 221,375.04, 331,865.34 and 81,100.86

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Solution

The fourth proportional to 221,375.04, 331,865.34 and 81,100.86 is: 121,579.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,375.04 : 331,865.34 = 81,100.86 : x
  2. Step 2: Convert to fraction form
    221,375.04/331,865.34 = 81,100.86/x
  3. Step 3: Cross multiply
    221,375.04x = 331,865.34 × 81,100.86
  4. Step 4: Simplify right side
    221,375.04x = 26,914,564,478.19
  5. Step 5: Solve for x
    x = 26,914,564,478.19/221,375.04
  6. Step 6: Final answer
    x = 121,579.04

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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.