Home / 99,719.40-149,586.30-33,205.80

Finding the Fourth Proportional to 99,719.40, 149,586.30 and 33,205.80

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Solution

The fourth proportional to 99,719.40, 149,586.30 and 33,205.80 is: 49,811.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,719.40 : 149,586.30 = 33,205.80 : x
  2. Step 2: Convert to fraction form
    99,719.40/149,586.30 = 33,205.80/x
  3. Step 3: Cross multiply
    99,719.40x = 149,586.30 × 33,205.80
  4. Step 4: Simplify right side
    99,719.40x = 4,967,132,760.54
  5. Step 5: Solve for x
    x = 4,967,132,760.54/99,719.40
  6. Step 6: Final answer
    x = 49,811.10

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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.