Home / 154,093.20-231,204.60-84,022.80

Finding the Fourth Proportional to 154,093.20, 231,204.60 and 84,022.80

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Solution

The fourth proportional to 154,093.20, 231,204.60 and 84,022.80 is: 126,069.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,093.20 : 231,204.60 = 84,022.80 : x
  2. Step 2: Convert to fraction form
    154,093.20/231,204.60 = 84,022.80/x
  3. Step 3: Cross multiply
    154,093.20x = 231,204.60 × 84,022.80
  4. Step 4: Simplify right side
    154,093.20x = 19,426,457,864.88
  5. Step 5: Solve for x
    x = 19,426,457,864.88/154,093.20
  6. Step 6: Final answer
    x = 126,069.53

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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.