Home / 100,815.27-151,135.43-50,853.66

Finding the Fourth Proportional to 100,815.27, 151,135.43 and 50,853.66

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Solution

The fourth proportional to 100,815.27, 151,135.43 and 50,853.66 is: 76,236.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,815.27 : 151,135.43 = 50,853.66 : x
  2. Step 2: Convert to fraction form
    100,815.27/151,135.43 = 50,853.66/x
  3. Step 3: Cross multiply
    100,815.27x = 151,135.43 × 50,853.66
  4. Step 4: Simplify right side
    100,815.27x = 7,685,789,516.91
  5. Step 5: Solve for x
    x = 7,685,789,516.91/100,815.27
  6. Step 6: Final answer
    x = 76,236.36

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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.