Home / 137,940.21-206,906.18-38,106.38

Finding the Fourth Proportional to 137,940.21, 206,906.18 and 38,106.38

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Solution

The fourth proportional to 137,940.21, 206,906.18 and 38,106.38 is: 57,158.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,940.21 : 206,906.18 = 38,106.38 : x
  2. Step 2: Convert to fraction form
    137,940.21/206,906.18 = 38,106.38/x
  3. Step 3: Cross multiply
    137,940.21x = 206,906.18 × 38,106.38
  4. Step 4: Simplify right side
    137,940.21x = 7,884,445,519.43
  5. Step 5: Solve for x
    x = 7,884,445,519.43/137,940.21
  6. Step 6: Final answer
    x = 57,158.43

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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.