Home / 196,450.89-294,730.71-78,205.26

Finding the Fourth Proportional to 196,450.89, 294,730.71 and 78,205.26

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Solution

The fourth proportional to 196,450.89, 294,730.71 and 78,205.26 is: 117,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,450.89 : 294,730.71 = 78,205.26 : x
  2. Step 2: Convert to fraction form
    196,450.89/294,730.71 = 78,205.26/x
  3. Step 3: Cross multiply
    196,450.89x = 294,730.71 × 78,205.26
  4. Step 4: Simplify right side
    196,450.89x = 23,049,491,805.53
  5. Step 5: Solve for x
    x = 23,049,491,805.53/196,450.89
  6. Step 6: Final answer
    x = 117,329.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.