Home / 139,591.37-192,744.21-107,274.80

Finding the Fourth Proportional to 139,591.37, 192,744.21 and 107,274.80

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Solution

The fourth proportional to 139,591.37, 192,744.21 and 107,274.80 is: 148,122.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,591.37 : 192,744.21 = 107,274.80 : x
  2. Step 2: Convert to fraction form
    139,591.37/192,744.21 = 107,274.80/x
  3. Step 3: Cross multiply
    139,591.37x = 192,744.21 × 107,274.80
  4. Step 4: Simplify right side
    139,591.37x = 20,676,595,615.19
  5. Step 5: Solve for x
    x = 20,676,595,615.19/139,591.37
  6. Step 6: Final answer
    x = 148,122.31

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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.