Home / 139,229.80-192,137.29-75,567.61

Finding the Fourth Proportional to 139,229.80, 192,137.29 and 75,567.61

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Solution

The fourth proportional to 139,229.80, 192,137.29 and 75,567.61 is: 104,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,229.80 : 192,137.29 = 75,567.61 : x
  2. Step 2: Convert to fraction form
    139,229.80/192,137.29 = 75,567.61/x
  3. Step 3: Cross multiply
    139,229.80x = 192,137.29 × 75,567.61
  4. Step 4: Simplify right side
    139,229.80x = 14,519,355,797.18
  5. Step 5: Solve for x
    x = 14,519,355,797.18/139,229.80
  6. Step 6: Final answer
    x = 104,283.39

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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.