Home / 119,249.88-178,485.39-87,651.60

Finding the Fourth Proportional to 119,249.88, 178,485.39 and 87,651.60

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Solution

The fourth proportional to 119,249.88, 178,485.39 and 87,651.60 is: 131,191.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,249.88 : 178,485.39 = 87,651.60 : x
  2. Step 2: Convert to fraction form
    119,249.88/178,485.39 = 87,651.60/x
  3. Step 3: Cross multiply
    119,249.88x = 178,485.39 × 87,651.60
  4. Step 4: Simplify right side
    119,249.88x = 15,644,530,010.12
  5. Step 5: Solve for x
    x = 15,644,530,010.12/119,249.88
  6. Step 6: Final answer
    x = 131,191.16

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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.