Home / 221,212.20-331,569.88-88,056.12

Finding the Fourth Proportional to 221,212.20, 331,569.88 and 88,056.12

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Solution

The fourth proportional to 221,212.20, 331,569.88 and 88,056.12 is: 131,985.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,212.20 : 331,569.88 = 88,056.12 : x
  2. Step 2: Convert to fraction form
    221,212.20/331,569.88 = 88,056.12/x
  3. Step 3: Cross multiply
    221,212.20x = 331,569.88 × 88,056.12
  4. Step 4: Simplify right side
    221,212.20x = 29,196,757,141.67
  5. Step 5: Solve for x
    x = 29,196,757,141.67/221,212.20
  6. Step 6: Final answer
    x = 131,985.29

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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.