Home / 139,336.20-192,281.85-75,673.44

Finding the Fourth Proportional to 139,336.20, 192,281.85 and 75,673.44

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Solution

The fourth proportional to 139,336.20, 192,281.85 and 75,673.44 is: 104,428.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,336.20 : 192,281.85 = 75,673.44 : x
  2. Step 2: Convert to fraction form
    139,336.20/192,281.85 = 75,673.44/x
  3. Step 3: Cross multiply
    139,336.20x = 192,281.85 × 75,673.44
  4. Step 4: Simplify right side
    139,336.20x = 14,550,629,039.06
  5. Step 5: Solve for x
    x = 14,550,629,039.06/139,336.20
  6. Step 6: Final answer
    x = 104,428.20

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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.