Home / 139,236.60-192,145.86-75,573.84

Finding the Fourth Proportional to 139,236.60, 192,145.86 and 75,573.84

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Solution

The fourth proportional to 139,236.60, 192,145.86 and 75,573.84 is: 104,291.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,236.60 : 192,145.86 = 75,573.84 : x
  2. Step 2: Convert to fraction form
    139,236.60/192,145.86 = 75,573.84/x
  3. Step 3: Cross multiply
    139,236.60x = 192,145.86 × 75,573.84
  4. Step 4: Simplify right side
    139,236.60x = 14,521,200,480.30
  5. Step 5: Solve for x
    x = 14,521,200,480.30/139,236.60
  6. Step 6: Final answer
    x = 104,291.55

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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.