Home / 190,263.39-285,370.42-71,919.33

Finding the Fourth Proportional to 190,263.39, 285,370.42 and 71,919.33

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Solution

The fourth proportional to 190,263.39, 285,370.42 and 71,919.33 is: 107,869.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,263.39 : 285,370.42 = 71,919.33 : x
  2. Step 2: Convert to fraction form
    190,263.39/285,370.42 = 71,919.33/x
  3. Step 3: Cross multiply
    190,263.39x = 285,370.42 × 71,919.33
  4. Step 4: Simplify right side
    190,263.39x = 20,523,649,408.22
  5. Step 5: Solve for x
    x = 20,523,649,408.22/190,263.39
  6. Step 6: Final answer
    x = 107,869.67

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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.