Home / 212,077.41-318,107.79-71,836.03

Finding the Fourth Proportional to 212,077.41, 318,107.79 and 71,836.03

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Solution

The fourth proportional to 212,077.41, 318,107.79 and 71,836.03 is: 107,751.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,077.41 : 318,107.79 = 71,836.03 : x
  2. Step 2: Convert to fraction form
    212,077.41/318,107.79 = 71,836.03/x
  3. Step 3: Cross multiply
    212,077.41x = 318,107.79 × 71,836.03
  4. Step 4: Simplify right side
    212,077.41x = 22,851,600,745.67
  5. Step 5: Solve for x
    x = 22,851,600,745.67/212,077.41
  6. Step 6: Final answer
    x = 107,751.23

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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.