Home / 143,542.44-198,123.72-111,213.09

Finding the Fourth Proportional to 143,542.44, 198,123.72 and 111,213.09

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Solution

The fourth proportional to 143,542.44, 198,123.72 and 111,213.09 is: 153,501.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,542.44 : 198,123.72 = 111,213.09 : x
  2. Step 2: Convert to fraction form
    143,542.44/198,123.72 = 111,213.09/x
  3. Step 3: Cross multiply
    143,542.44x = 198,123.72 × 111,213.09
  4. Step 4: Simplify right side
    143,542.44x = 22,033,951,103.49
  5. Step 5: Solve for x
    x = 22,033,951,103.49/143,542.44
  6. Step 6: Final answer
    x = 153,501.30

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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.