Home / 214,728.15-321,991.05-79,698.66

Finding the Fourth Proportional to 214,728.15, 321,991.05 and 79,698.66

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Solution

The fourth proportional to 214,728.15, 321,991.05 and 79,698.66 is: 119,510.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,728.15 : 321,991.05 = 79,698.66 : x
  2. Step 2: Convert to fraction form
    214,728.15/321,991.05 = 79,698.66/x
  3. Step 3: Cross multiply
    214,728.15x = 321,991.05 × 79,698.66
  4. Step 4: Simplify right side
    214,728.15x = 25,662,255,216.99
  5. Step 5: Solve for x
    x = 25,662,255,216.99/214,728.15
  6. Step 6: Final answer
    x = 119,510.44

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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.