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Finding the Fourth Proportional to 151,099.62, 208,524.54 and 87,425.11

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Solution

The fourth proportional to 151,099.62, 208,524.54 and 87,425.11 is: 120,650.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,099.62 : 208,524.54 = 87,425.11 : x
  2. Step 2: Convert to fraction form
    151,099.62/208,524.54 = 87,425.11/x
  3. Step 3: Cross multiply
    151,099.62x = 208,524.54 × 87,425.11
  4. Step 4: Simplify right side
    151,099.62x = 18,230,280,847.20
  5. Step 5: Solve for x
    x = 18,230,280,847.20/151,099.62
  6. Step 6: Final answer
    x = 120,650.74

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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.