Home / 148,819.23-205,372.40-80,837.34

Finding the Fourth Proportional to 148,819.23, 205,372.40 and 80,837.34

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Solution

The fourth proportional to 148,819.23, 205,372.40 and 80,837.34 is: 111,556.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,819.23 : 205,372.40 = 80,837.34 : x
  2. Step 2: Convert to fraction form
    148,819.23/205,372.40 = 80,837.34/x
  3. Step 3: Cross multiply
    148,819.23x = 205,372.40 × 80,837.34
  4. Step 4: Simplify right side
    148,819.23x = 16,601,757,498.55
  5. Step 5: Solve for x
    x = 16,601,757,498.55/148,819.23
  6. Step 6: Final answer
    x = 111,556.54

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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.