Home / 214,895.20-322,229.40-72,691.60

Finding the Fourth Proportional to 214,895.20, 322,229.40 and 72,691.60

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Solution

The fourth proportional to 214,895.20, 322,229.40 and 72,691.60 is: 108,999.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,895.20 : 322,229.40 = 72,691.60 : x
  2. Step 2: Convert to fraction form
    214,895.20/322,229.40 = 72,691.60/x
  3. Step 3: Cross multiply
    214,895.20x = 322,229.40 × 72,691.60
  4. Step 4: Simplify right side
    214,895.20x = 23,423,370,653.04
  5. Step 5: Solve for x
    x = 23,423,370,653.04/214,895.20
  6. Step 6: Final answer
    x = 108,999.04

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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.