Home / 120,772.80-181,159.20-106,010.55

Finding the Fourth Proportional to 120,772.80, 181,159.20 and 106,010.55

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Solution

The fourth proportional to 120,772.80, 181,159.20 and 106,010.55 is: 159,015.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,772.80 : 181,159.20 = 106,010.55 : x
  2. Step 2: Convert to fraction form
    120,772.80/181,159.20 = 106,010.55/x
  3. Step 3: Cross multiply
    120,772.80x = 181,159.20 × 106,010.55
  4. Step 4: Simplify right side
    120,772.80x = 19,204,786,429.56
  5. Step 5: Solve for x
    x = 19,204,786,429.56/120,772.80
  6. Step 6: Final answer
    x = 159,015.83

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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.