Home / 139,403.20-192,375.88-75,740.44

Finding the Fourth Proportional to 139,403.20, 192,375.88 and 75,740.44

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Solution

The fourth proportional to 139,403.20, 192,375.88 and 75,740.44 is: 104,521.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,403.20 : 192,375.88 = 75,740.44 : x
  2. Step 2: Convert to fraction form
    139,403.20/192,375.88 = 75,740.44/x
  3. Step 3: Cross multiply
    139,403.20x = 192,375.88 × 75,740.44
  4. Step 4: Simplify right side
    139,403.20x = 14,570,633,796.59
  5. Step 5: Solve for x
    x = 14,570,633,796.59/139,403.20
  6. Step 6: Final answer
    x = 104,521.52

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1.5x scale

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.