Home / 133,072.40-199,608.60-39,578.15

Finding the Fourth Proportional to 133,072.40, 199,608.60 and 39,578.15

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Solution

The fourth proportional to 133,072.40, 199,608.60 and 39,578.15 is: 59,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,072.40 : 199,608.60 = 39,578.15 : x
  2. Step 2: Convert to fraction form
    133,072.40/199,608.60 = 39,578.15/x
  3. Step 3: Cross multiply
    133,072.40x = 199,608.60 × 39,578.15
  4. Step 4: Simplify right side
    133,072.40x = 7,900,139,112.09
  5. Step 5: Solve for x
    x = 7,900,139,112.09/133,072.40
  6. Step 6: Final answer
    x = 59,367.23

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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.