Home / 143,141.22-197,540.91-79,484.94

Finding the Fourth Proportional to 143,141.22, 197,540.91 and 79,484.94

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Solution

The fourth proportional to 143,141.22, 197,540.91 and 79,484.94 is: 109,692.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,141.22 : 197,540.91 = 79,484.94 : x
  2. Step 2: Convert to fraction form
    143,141.22/197,540.91 = 79,484.94/x
  3. Step 3: Cross multiply
    143,141.22x = 197,540.91 × 79,484.94
  4. Step 4: Simplify right side
    143,141.22x = 15,701,527,378.90
  5. Step 5: Solve for x
    x = 15,701,527,378.90/143,141.22
  6. Step 6: Final answer
    x = 109,692.56

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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.