Home / 100,851.72-151,295.64-34,288.38

Finding the Fourth Proportional to 100,851.72, 151,295.64 and 34,288.38

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Solution

The fourth proportional to 100,851.72, 151,295.64 and 34,288.38 is: 51,438.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,851.72 : 151,295.64 = 34,288.38 : x
  2. Step 2: Convert to fraction form
    100,851.72/151,295.64 = 34,288.38/x
  3. Step 3: Cross multiply
    100,851.72x = 151,295.64 × 34,288.38
  4. Step 4: Simplify right side
    100,851.72x = 5,187,682,396.66
  5. Step 5: Solve for x
    x = 5,187,682,396.66/100,851.72
  6. Step 6: Final answer
    x = 51,438.71

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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.