Home / 139,217.69-192,120.53-75,555.47

Finding the Fourth Proportional to 139,217.69, 192,120.53 and 75,555.47

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Solution

The fourth proportional to 139,217.69, 192,120.53 and 75,555.47 is: 104,266.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,217.69 : 192,120.53 = 75,555.47 : x
  2. Step 2: Convert to fraction form
    139,217.69/192,120.53 = 75,555.47/x
  3. Step 3: Cross multiply
    139,217.69x = 192,120.53 × 75,555.47
  4. Step 4: Simplify right side
    139,217.69x = 14,515,757,043.32
  5. Step 5: Solve for x
    x = 14,515,757,043.32/139,217.69
  6. Step 6: Final answer
    x = 104,266.61

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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.