Home / 170,858.06-256,141.23-120,780.62

Finding the Fourth Proportional to 170,858.06, 256,141.23 and 120,780.62

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Solution

The fourth proportional to 170,858.06, 256,141.23 and 120,780.62 is: 181,067.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,858.06 : 256,141.23 = 120,780.62 : x
  2. Step 2: Convert to fraction form
    170,858.06/256,141.23 = 120,780.62/x
  3. Step 3: Cross multiply
    170,858.06x = 256,141.23 × 120,780.62
  4. Step 4: Simplify right side
    170,858.06x = 30,936,896,566.96
  5. Step 5: Solve for x
    x = 30,936,896,566.96/170,858.06
  6. Step 6: Final answer
    x = 181,067.82

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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.