Home / 143,349.13-197,833.76-79,692.85

Finding the Fourth Proportional to 143,349.13, 197,833.76 and 79,692.85

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Solution

The fourth proportional to 143,349.13, 197,833.76 and 79,692.85 is: 109,982.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,349.13 : 197,833.76 = 79,692.85 : x
  2. Step 2: Convert to fraction form
    143,349.13/197,833.76 = 79,692.85/x
  3. Step 3: Cross multiply
    143,349.13x = 197,833.76 × 79,692.85
  4. Step 4: Simplify right side
    143,349.13x = 15,765,936,160.62
  5. Step 5: Solve for x
    x = 15,765,936,160.62/143,349.13
  6. Step 6: Final answer
    x = 109,982.78

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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.