Home / 212,154.56-318,214.92-123,351.44

Finding the Fourth Proportional to 212,154.56, 318,214.92 and 123,351.44

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Solution

The fourth proportional to 212,154.56, 318,214.92 and 123,351.44 is: 185,017.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,154.56 : 318,214.92 = 123,351.44 : x
  2. Step 2: Convert to fraction form
    212,154.56/318,214.92 = 123,351.44/x
  3. Step 3: Cross multiply
    212,154.56x = 318,214.92 × 123,351.44
  4. Step 4: Simplify right side
    212,154.56x = 39,252,268,611.48
  5. Step 5: Solve for x
    x = 39,252,268,611.48/212,154.56
  6. Step 6: Final answer
    x = 185,017.32

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1.5x scale

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.