Home / 188,306.07-259,787.25-120,305.41

Finding the Fourth Proportional to 188,306.07, 259,787.25 and 120,305.41

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Solution

The fourth proportional to 188,306.07, 259,787.25 and 120,305.41 is: 165,973.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,306.07 : 259,787.25 = 120,305.41 : x
  2. Step 2: Convert to fraction form
    188,306.07/259,787.25 = 120,305.41/x
  3. Step 3: Cross multiply
    188,306.07x = 259,787.25 × 120,305.41
  4. Step 4: Simplify right side
    188,306.07x = 31,253,811,624.02
  5. Step 5: Solve for x
    x = 31,253,811,624.02/188,306.07
  6. Step 6: Final answer
    x = 165,973.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.