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Finding the Fourth Proportional to 168,055.20, 251,861.40 and 123,472.80

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Solution

The fourth proportional to 168,055.20, 251,861.40 and 123,472.80 is: 185,046.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,055.20 : 251,861.40 = 123,472.80 : x
  2. Step 2: Convert to fraction form
    168,055.20/251,861.40 = 123,472.80/x
  3. Step 3: Cross multiply
    168,055.20x = 251,861.40 × 123,472.80
  4. Step 4: Simplify right side
    168,055.20x = 31,098,032,269.92
  5. Step 5: Solve for x
    x = 31,098,032,269.92/168,055.20
  6. Step 6: Final answer
    x = 185,046.53

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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.