Home / 78,249.66-117,174.15-43,150.38

Finding the Fourth Proportional to 78,249.66, 117,174.15 and 43,150.38

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Solution

The fourth proportional to 78,249.66, 117,174.15 and 43,150.38 is: 64,615.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,249.66 : 117,174.15 = 43,150.38 : x
  2. Step 2: Convert to fraction form
    78,249.66/117,174.15 = 43,150.38/x
  3. Step 3: Cross multiply
    78,249.66x = 117,174.15 × 43,150.38
  4. Step 4: Simplify right side
    78,249.66x = 5,056,109,098.68
  5. Step 5: Solve for x
    x = 5,056,109,098.68/78,249.66
  6. Step 6: Final answer
    x = 64,615.09

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1.5x scale

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.