Home / 211,817.25-317,857.19-123,112.53

Finding the Fourth Proportional to 211,817.25, 317,857.19 and 123,112.53

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Solution

The fourth proportional to 211,817.25, 317,857.19 and 123,112.53 is: 184,745.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,817.25 : 317,857.19 = 123,112.53 : x
  2. Step 2: Convert to fraction form
    211,817.25/317,857.19 = 123,112.53/x
  3. Step 3: Cross multiply
    211,817.25x = 317,857.19 × 123,112.53
  4. Step 4: Simplify right side
    211,817.25x = 39,132,202,224.03
  5. Step 5: Solve for x
    x = 39,132,202,224.03/211,817.25
  6. Step 6: Final answer
    x = 184,745.12

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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.