Home / 221,454.30-332,181.45-81,194.70

Finding the Fourth Proportional to 221,454.30, 332,181.45 and 81,194.70

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Solution

The fourth proportional to 221,454.30, 332,181.45 and 81,194.70 is: 121,792.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,454.30 : 332,181.45 = 81,194.70 : x
  2. Step 2: Convert to fraction form
    221,454.30/332,181.45 = 81,194.70/x
  3. Step 3: Cross multiply
    221,454.30x = 332,181.45 × 81,194.70
  4. Step 4: Simplify right side
    221,454.30x = 26,971,373,178.32
  5. Step 5: Solve for x
    x = 26,971,373,178.32/221,454.30
  6. Step 6: Final answer
    x = 121,792.05

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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.