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Finding the Fourth Proportional to 118,760.82, 178,149.87 and 39,874.38

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Solution

The fourth proportional to 118,760.82, 178,149.87 and 39,874.38 is: 59,814.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,760.82 : 178,149.87 = 39,874.38 : x
  2. Step 2: Convert to fraction form
    118,760.82/178,149.87 = 39,874.38/x
  3. Step 3: Cross multiply
    118,760.82x = 178,149.87 × 39,874.38
  4. Step 4: Simplify right side
    118,760.82x = 7,103,615,613.33
  5. Step 5: Solve for x
    x = 7,103,615,613.33/118,760.82
  6. Step 6: Final answer
    x = 59,814.47

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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.