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Finding the Fourth Proportional to 166,987.60, 250,511.78 and 54,636.55

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Solution

The fourth proportional to 166,987.60, 250,511.78 and 54,636.55 is: 81,964.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,987.60 : 250,511.78 = 54,636.55 : x
  2. Step 2: Convert to fraction form
    166,987.60/250,511.78 = 54,636.55/x
  3. Step 3: Cross multiply
    166,987.60x = 250,511.78 × 54,636.55
  4. Step 4: Simplify right side
    166,987.60x = 13,687,099,120.38
  5. Step 5: Solve for x
    x = 13,687,099,120.38/166,987.60
  6. Step 6: Final answer
    x = 81,964.76

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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.