Home / 139,736.07-192,836.49-76,074.32

Finding the Fourth Proportional to 139,736.07, 192,836.49 and 76,074.32

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Solution

The fourth proportional to 139,736.07, 192,836.49 and 76,074.32 is: 104,982.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,736.07 : 192,836.49 = 76,074.32 : x
  2. Step 2: Convert to fraction form
    139,736.07/192,836.49 = 76,074.32/x
  3. Step 3: Cross multiply
    139,736.07x = 192,836.49 × 76,074.32
  4. Step 4: Simplify right side
    139,736.07x = 14,669,903,883.75
  5. Step 5: Solve for x
    x = 14,669,903,883.75/139,736.07
  6. Step 6: Final answer
    x = 104,982.94

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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.