Home / 119,028.72-178,418.44-40,115.68

Finding the Fourth Proportional to 119,028.72, 178,418.44 and 40,115.68

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Solution

The fourth proportional to 119,028.72, 178,418.44 and 40,115.68 is: 60,131.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,028.72 : 178,418.44 = 40,115.68 : x
  2. Step 2: Convert to fraction form
    119,028.72/178,418.44 = 40,115.68/x
  3. Step 3: Cross multiply
    119,028.72x = 178,418.44 × 40,115.68
  4. Step 4: Simplify right side
    119,028.72x = 7,157,377,045.14
  5. Step 5: Solve for x
    x = 7,157,377,045.14/119,028.72
  6. Step 6: Final answer
    x = 60,131.51

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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.