Home / 139,919.70-193,093.26-76,261.62

Finding the Fourth Proportional to 139,919.70, 193,093.26 and 76,261.62

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Solution

The fourth proportional to 139,919.70, 193,093.26 and 76,261.62 is: 105,243.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,919.70 : 193,093.26 = 76,261.62 : x
  2. Step 2: Convert to fraction form
    139,919.70/193,093.26 = 76,261.62/x
  3. Step 3: Cross multiply
    139,919.70x = 193,093.26 × 76,261.62
  4. Step 4: Simplify right side
    139,919.70x = 14,725,604,818.68
  5. Step 5: Solve for x
    x = 14,725,604,818.68/139,919.70
  6. Step 6: Final answer
    x = 105,243.26

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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.