Home / 120,716.82-181,072.06-57,581.57

Finding the Fourth Proportional to 120,716.82, 181,072.06 and 57,581.57

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Solution

The fourth proportional to 120,716.82, 181,072.06 and 57,581.57 is: 86,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,716.82 : 181,072.06 = 57,581.57 : x
  2. Step 2: Convert to fraction form
    120,716.82/181,072.06 = 57,581.57/x
  3. Step 3: Cross multiply
    120,716.82x = 181,072.06 × 57,581.57
  4. Step 4: Simplify right side
    120,716.82x = 10,426,413,806.66
  5. Step 5: Solve for x
    x = 10,426,413,806.66/120,716.82
  6. Step 6: Final answer
    x = 86,370.85

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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.