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Finding the Fourth Proportional to 168,309, 232,249.82 and 117,431.10

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Solution

The fourth proportional to 168,309, 232,249.82 and 117,431.10 is: 162,043.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,309 : 232,249.82 = 117,431.10 : x
  2. Step 2: Convert to fraction form
    168,309/232,249.82 = 117,431.10/x
  3. Step 3: Cross multiply
    168,309x = 232,249.82 × 117,431.10
  4. Step 4: Simplify right side
    168,309x = 27,273,351,250.25
  5. Step 5: Solve for x
    x = 27,273,351,250.25/168,309
  6. Step 6: Final answer
    x = 162,043.33

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1.5x scale

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.