Home / 137,939.21-206,904.68-38,105.38

Finding the Fourth Proportional to 137,939.21, 206,904.68 and 38,105.38

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Solution

The fourth proportional to 137,939.21, 206,904.68 and 38,105.38 is: 57,156.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,939.21 : 206,904.68 = 38,105.38 : x
  2. Step 2: Convert to fraction form
    137,939.21/206,904.68 = 38,105.38/x
  3. Step 3: Cross multiply
    137,939.21x = 206,904.68 × 38,105.38
  4. Step 4: Simplify right side
    137,939.21x = 7,884,181,455.18
  5. Step 5: Solve for x
    x = 7,884,181,455.18/137,939.21
  6. Step 6: Final answer
    x = 57,156.93

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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.