Home / 139,274.20-192,253.26-93,979

Finding the Fourth Proportional to 139,274.20, 192,253.26 and 93,979

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Solution

The fourth proportional to 139,274.20, 192,253.26 and 93,979 is: 129,728.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,274.20 : 192,253.26 = 93,979 : x
  2. Step 2: Convert to fraction form
    139,274.20/192,253.26 = 93,979/x
  3. Step 3: Cross multiply
    139,274.20x = 192,253.26 × 93,979
  4. Step 4: Simplify right side
    139,274.20x = 18,067,769,121.54
  5. Step 5: Solve for x
    x = 18,067,769,121.54/139,274.20
  6. Step 6: Final answer
    x = 129,728.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.