Home / 214,813.38-321,729.24-102,572.21

Finding the Fourth Proportional to 214,813.38, 321,729.24 and 102,572.21

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Solution

The fourth proportional to 214,813.38, 321,729.24 and 102,572.21 is: 153,623.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,813.38 : 321,729.24 = 102,572.21 : x
  2. Step 2: Convert to fraction form
    214,813.38/321,729.24 = 102,572.21/x
  3. Step 3: Cross multiply
    214,813.38x = 321,729.24 × 102,572.21
  4. Step 4: Simplify right side
    214,813.38x = 33,000,479,168.42
  5. Step 5: Solve for x
    x = 33,000,479,168.42/214,813.38
  6. Step 6: Final answer
    x = 153,623.95

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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.