Home / 139,455.05-192,447.99-75,792.84

Finding the Fourth Proportional to 139,455.05, 192,447.99 and 75,792.84

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Solution

The fourth proportional to 139,455.05, 192,447.99 and 75,792.84 is: 104,594.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,455.05 : 192,447.99 = 75,792.84 : x
  2. Step 2: Convert to fraction form
    139,455.05/192,447.99 = 75,792.84/x
  3. Step 3: Cross multiply
    139,455.05x = 192,447.99 × 75,792.84
  4. Step 4: Simplify right side
    139,455.05x = 14,586,179,335.43
  5. Step 5: Solve for x
    x = 14,586,179,335.43/139,455.05
  6. Step 6: Final answer
    x = 104,594.13

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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.