Home / 209,114.11-313,494.82-90,696.25

Finding the Fourth Proportional to 209,114.11, 313,494.82 and 90,696.25

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Solution

The fourth proportional to 209,114.11, 313,494.82 and 90,696.25 is: 135,967.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,114.11 : 313,494.82 = 90,696.25 : x
  2. Step 2: Convert to fraction form
    209,114.11/313,494.82 = 90,696.25/x
  3. Step 3: Cross multiply
    209,114.11x = 313,494.82 × 90,696.25
  4. Step 4: Simplify right side
    209,114.11x = 28,432,804,568.43
  5. Step 5: Solve for x
    x = 28,432,804,568.43/209,114.11
  6. Step 6: Final answer
    x = 135,967.89

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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.