Home / 99,704.20-149,556.30-92,705.80

Finding the Fourth Proportional to 99,704.20, 149,556.30 and 92,705.80

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Solution

The fourth proportional to 99,704.20, 149,556.30 and 92,705.80 is: 139,058.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,704.20 : 149,556.30 = 92,705.80 : x
  2. Step 2: Convert to fraction form
    99,704.20/149,556.30 = 92,705.80/x
  3. Step 3: Cross multiply
    99,704.20x = 149,556.30 × 92,705.80
  4. Step 4: Simplify right side
    99,704.20x = 13,864,736,436.54
  5. Step 5: Solve for x
    x = 13,864,736,436.54/99,704.20
  6. Step 6: Final answer
    x = 139,058.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.