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Finding the Fourth Proportional to 112,469.34, 168,704.01 and 45,940.86

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Solution

The fourth proportional to 112,469.34, 168,704.01 and 45,940.86 is: 68,911.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,469.34 : 168,704.01 = 45,940.86 : x
  2. Step 2: Convert to fraction form
    112,469.34/168,704.01 = 45,940.86/x
  3. Step 3: Cross multiply
    112,469.34x = 168,704.01 × 45,940.86
  4. Step 4: Simplify right side
    112,469.34x = 7,750,407,304.85
  5. Step 5: Solve for x
    x = 7,750,407,304.85/112,469.34
  6. Step 6: Final answer
    x = 68,911.29

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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.