Home / 152,721.96-228,998.85-81,727.84

Finding the Fourth Proportional to 152,721.96, 228,998.85 and 81,727.84

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Solution

The fourth proportional to 152,721.96, 228,998.85 and 81,727.84 is: 122,546.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,721.96 : 228,998.85 = 81,727.84 : x
  2. Step 2: Convert to fraction form
    152,721.96/228,998.85 = 81,727.84/x
  3. Step 3: Cross multiply
    152,721.96x = 228,998.85 × 81,727.84
  4. Step 4: Simplify right side
    152,721.96x = 18,715,581,372.98
  5. Step 5: Solve for x
    x = 18,715,581,372.98/152,721.96
  6. Step 6: Final answer
    x = 122,546.76

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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.