Home / 213,072.67-319,525.94-79,880.25

Finding the Fourth Proportional to 213,072.67, 319,525.94 and 79,880.25

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Solution

The fourth proportional to 213,072.67, 319,525.94 and 79,880.25 is: 119,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,072.67 : 319,525.94 = 79,880.25 : x
  2. Step 2: Convert to fraction form
    213,072.67/319,525.94 = 79,880.25/x
  3. Step 3: Cross multiply
    213,072.67x = 319,525.94 × 79,880.25
  4. Step 4: Simplify right side
    213,072.67x = 25,523,812,168.39
  5. Step 5: Solve for x
    x = 25,523,812,168.39/213,072.67
  6. Step 6: Final answer
    x = 119,789.24

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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.