Home / 221,092.90-305,105.60-130,449.04

Finding the Fourth Proportional to 221,092.90, 305,105.60 and 130,449.04

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Solution

The fourth proportional to 221,092.90, 305,105.60 and 130,449.04 is: 180,018.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,092.90 : 305,105.60 = 130,449.04 : x
  2. Step 2: Convert to fraction form
    221,092.90/305,105.60 = 130,449.04/x
  3. Step 3: Cross multiply
    221,092.90x = 305,105.60 × 130,449.04
  4. Step 4: Simplify right side
    221,092.90x = 39,800,732,618.62
  5. Step 5: Solve for x
    x = 39,800,732,618.62/221,092.90
  6. Step 6: Final answer
    x = 180,018.14

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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.