Home / 137,339.69-206,086.07-74,158.47

Finding the Fourth Proportional to 137,339.69, 206,086.07 and 74,158.47

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Solution

The fourth proportional to 137,339.69, 206,086.07 and 74,158.47 is: 111,279.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,339.69 : 206,086.07 = 74,158.47 : x
  2. Step 2: Convert to fraction form
    137,339.69/206,086.07 = 74,158.47/x
  3. Step 3: Cross multiply
    137,339.69x = 206,086.07 × 74,158.47
  4. Step 4: Simplify right side
    137,339.69x = 15,283,027,824.91
  5. Step 5: Solve for x
    x = 15,283,027,824.91/137,339.69
  6. Step 6: Final answer
    x = 111,279.04

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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.