Home / 214,367.40-321,369.66-81,174.24

Finding the Fourth Proportional to 214,367.40, 321,369.66 and 81,174.24

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Solution

The fourth proportional to 214,367.40, 321,369.66 and 81,174.24 is: 121,692.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,367.40 : 321,369.66 = 81,174.24 : x
  2. Step 2: Convert to fraction form
    214,367.40/321,369.66 = 81,174.24/x
  3. Step 3: Cross multiply
    214,367.40x = 321,369.66 × 81,174.24
  4. Step 4: Simplify right side
    214,367.40x = 26,086,937,909.56
  5. Step 5: Solve for x
    x = 26,086,937,909.56/214,367.40
  6. Step 6: Final answer
    x = 121,692.65

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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.