Home / 147,819.56-203,990.85-79,836.53

Finding the Fourth Proportional to 147,819.56, 203,990.85 and 79,836.53

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Solution

The fourth proportional to 147,819.56, 203,990.85 and 79,836.53 is: 110,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,819.56 : 203,990.85 = 79,836.53 : x
  2. Step 2: Convert to fraction form
    147,819.56/203,990.85 = 79,836.53/x
  3. Step 3: Cross multiply
    147,819.56x = 203,990.85 × 79,836.53
  4. Step 4: Simplify right side
    147,819.56x = 16,285,920,595.80
  5. Step 5: Solve for x
    x = 16,285,920,595.80/147,819.56
  6. Step 6: Final answer
    x = 110,174.33

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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.