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Finding the Fourth Proportional to 169,890.42, 254,834.01 and 45,231.42

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Solution

The fourth proportional to 169,890.42, 254,834.01 and 45,231.42 is: 67,846.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,890.42 : 254,834.01 = 45,231.42 : x
  2. Step 2: Convert to fraction form
    169,890.42/254,834.01 = 45,231.42/x
  3. Step 3: Cross multiply
    169,890.42x = 254,834.01 × 45,231.42
  4. Step 4: Simplify right side
    169,890.42x = 11,526,504,136.59
  5. Step 5: Solve for x
    x = 11,526,504,136.59/169,890.42
  6. Step 6: Final answer
    x = 67,846.70

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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.