Home / 139,229.79-192,137.25-75,567.62

Finding the Fourth Proportional to 139,229.79, 192,137.25 and 75,567.62

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Solution

The fourth proportional to 139,229.79, 192,137.25 and 75,567.62 is: 104,283.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,229.79 : 192,137.25 = 75,567.62 : x
  2. Step 2: Convert to fraction form
    139,229.79/192,137.25 = 75,567.62/x
  3. Step 3: Cross multiply
    139,229.79x = 192,137.25 × 75,567.62
  4. Step 4: Simplify right side
    139,229.79x = 14,519,354,695.85
  5. Step 5: Solve for x
    x = 14,519,354,695.85/139,229.79
  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.