Home / 214,115.10-321,172.65-131,171.10

Finding the Fourth Proportional to 214,115.10, 321,172.65 and 131,171.10

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Solution

The fourth proportional to 214,115.10, 321,172.65 and 131,171.10 is: 196,756.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,115.10 : 321,172.65 = 131,171.10 : x
  2. Step 2: Convert to fraction form
    214,115.10/321,172.65 = 131,171.10/x
  3. Step 3: Cross multiply
    214,115.10x = 321,172.65 × 131,171.10
  4. Step 4: Simplify right side
    214,115.10x = 42,128,569,790.42
  5. Step 5: Solve for x
    x = 42,128,569,790.42/214,115.10
  6. Step 6: Final answer
    x = 196,756.65

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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.