Home / 198,971.90-298,469.51-56,806.23

Finding the Fourth Proportional to 198,971.90, 298,469.51 and 56,806.23

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Solution

The fourth proportional to 198,971.90, 298,469.51 and 56,806.23 is: 85,212.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,971.90 : 298,469.51 = 56,806.23 : x
  2. Step 2: Convert to fraction form
    198,971.90/298,469.51 = 56,806.23/x
  3. Step 3: Cross multiply
    198,971.90x = 298,469.51 × 56,806.23
  4. Step 4: Simplify right side
    198,971.90x = 16,954,927,633.05
  5. Step 5: Solve for x
    x = 16,954,927,633.05/198,971.90
  6. Step 6: Final answer
    x = 85,212.67

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1.5x scale

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.