Home / 212,099.43-318,132.59-123,296.29

Finding the Fourth Proportional to 212,099.43, 318,132.59 and 123,296.29

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Solution

The fourth proportional to 212,099.43, 318,132.59 and 123,296.29 is: 184,934.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,099.43 : 318,132.59 = 123,296.29 : x
  2. Step 2: Convert to fraction form
    212,099.43/318,132.59 = 123,296.29/x
  3. Step 3: Cross multiply
    212,099.43x = 318,132.59 × 123,296.29
  4. Step 4: Simplify right side
    212,099.43x = 39,224,568,075.09
  5. Step 5: Solve for x
    x = 39,224,568,075.09/212,099.43
  6. Step 6: Final answer
    x = 184,934.82

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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.