Home / 139,578.06-192,619.35-75,917.34

Finding the Fourth Proportional to 139,578.06, 192,619.35 and 75,917.34

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Solution

The fourth proportional to 139,578.06, 192,619.35 and 75,917.34 is: 104,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,578.06 : 192,619.35 = 75,917.34 : x
  2. Step 2: Convert to fraction form
    139,578.06/192,619.35 = 75,917.34/x
  3. Step 3: Cross multiply
    139,578.06x = 192,619.35 × 75,917.34
  4. Step 4: Simplify right side
    139,578.06x = 14,623,148,684.53
  5. Step 5: Solve for x
    x = 14,623,148,684.53/139,578.06
  6. Step 6: Final answer
    x = 104,766.81

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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.