Home / 101,899.38-151,793.10-100,222.68

Finding the Fourth Proportional to 101,899.38, 151,793.10 and 100,222.68

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Solution

The fourth proportional to 101,899.38, 151,793.10 and 100,222.68 is: 149,295.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,899.38 : 151,793.10 = 100,222.68 : x
  2. Step 2: Convert to fraction form
    101,899.38/151,793.10 = 100,222.68/x
  3. Step 3: Cross multiply
    101,899.38x = 151,793.10 × 100,222.68
  4. Step 4: Simplify right side
    101,899.38x = 15,213,111,287.51
  5. Step 5: Solve for x
    x = 15,213,111,287.51/101,899.38
  6. Step 6: Final answer
    x = 149,295.43

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.