Home / 143,755.27-198,383.63-79,226.83

Finding the Fourth Proportional to 143,755.27, 198,383.63 and 79,226.83

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Solution

The fourth proportional to 143,755.27, 198,383.63 and 79,226.83 is: 109,333.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,755.27 : 198,383.63 = 79,226.83 : x
  2. Step 2: Convert to fraction form
    143,755.27/198,383.63 = 79,226.83/x
  3. Step 3: Cross multiply
    143,755.27x = 198,383.63 × 79,226.83
  4. Step 4: Simplify right side
    143,755.27x = 15,717,306,733.56
  5. Step 5: Solve for x
    x = 15,717,306,733.56/143,755.27
  6. Step 6: Final answer
    x = 109,333.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.