Home / 189,919.40-284,645.82-106,638.44

Finding the Fourth Proportional to 189,919.40, 284,645.82 and 106,638.44

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Solution

The fourth proportional to 189,919.40, 284,645.82 and 106,638.44 is: 159,826.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,919.40 : 284,645.82 = 106,638.44 : x
  2. Step 2: Convert to fraction form
    189,919.40/284,645.82 = 106,638.44/x
  3. Step 3: Cross multiply
    189,919.40x = 284,645.82 × 106,638.44
  4. Step 4: Simplify right side
    189,919.40x = 30,354,186,197.32
  5. Step 5: Solve for x
    x = 30,354,186,197.32/189,919.40
  6. Step 6: Final answer
    x = 159,826.67

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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.