Home / 137,938.32-206,891.91-38,112.75

Finding the Fourth Proportional to 137,938.32, 206,891.91 and 38,112.75

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Solution

The fourth proportional to 137,938.32, 206,891.91 and 38,112.75 is: 57,164.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,938.32 : 206,891.91 = 38,112.75 : x
  2. Step 2: Convert to fraction form
    137,938.32/206,891.91 = 38,112.75/x
  3. Step 3: Cross multiply
    137,938.32x = 206,891.91 × 38,112.75
  4. Step 4: Simplify right side
    137,938.32x = 7,885,219,642.85
  5. Step 5: Solve for x
    x = 7,885,219,642.85/137,938.32
  6. Step 6: Final answer
    x = 57,164.82

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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.