Home / 263,146.16-394,722.84-85,654.04

Finding the Fourth Proportional to 263,146.16, 394,722.84 and 85,654.04

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Solution

The fourth proportional to 263,146.16, 394,722.84 and 85,654.04 is: 128,482.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,146.16 : 394,722.84 = 85,654.04 : x
  2. Step 2: Convert to fraction form
    263,146.16/394,722.84 = 85,654.04/x
  3. Step 3: Cross multiply
    263,146.16x = 394,722.84 × 85,654.04
  4. Step 4: Simplify right side
    263,146.16x = 33,809,605,926.27
  5. Step 5: Solve for x
    x = 33,809,605,926.27/263,146.16
  6. Step 6: Final answer
    x = 128,482.23

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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.