Home / 155,855.30-233,361.30-80,817.70

Finding the Fourth Proportional to 155,855.30, 233,361.30 and 80,817.70

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Solution

The fourth proportional to 155,855.30, 233,361.30 and 80,817.70 is: 121,007.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,855.30 : 233,361.30 = 80,817.70 : x
  2. Step 2: Convert to fraction form
    155,855.30/233,361.30 = 80,817.70/x
  3. Step 3: Cross multiply
    155,855.30x = 233,361.30 × 80,817.70
  4. Step 4: Simplify right side
    155,855.30x = 18,859,723,010.33
  5. Step 5: Solve for x
    x = 18,859,723,010.33/155,855.30
  6. Step 6: Final answer
    x = 121,007.90

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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.