Home / 101,222.86-151,836.09-31,102.78

Finding the Fourth Proportional to 101,222.86, 151,836.09 and 31,102.78

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Solution

The fourth proportional to 101,222.86, 151,836.09 and 31,102.78 is: 46,654.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,222.86 : 151,836.09 = 31,102.78 : x
  2. Step 2: Convert to fraction form
    101,222.86/151,836.09 = 31,102.78/x
  3. Step 3: Cross multiply
    101,222.86x = 151,836.09 × 31,102.78
  4. Step 4: Simplify right side
    101,222.86x = 4,722,524,503.33
  5. Step 5: Solve for x
    x = 4,722,524,503.33/101,222.86
  6. Step 6: Final answer
    x = 46,654.72

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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.