Home / 190,334.10-285,478.35-50,103.78

Finding the Fourth Proportional to 190,334.10, 285,478.35 and 50,103.78

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Solution

The fourth proportional to 190,334.10, 285,478.35 and 50,103.78 is: 75,149.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,334.10 : 285,478.35 = 50,103.78 : x
  2. Step 2: Convert to fraction form
    190,334.10/285,478.35 = 50,103.78/x
  3. Step 3: Cross multiply
    190,334.10x = 285,478.35 × 50,103.78
  4. Step 4: Simplify right side
    190,334.10x = 14,303,544,443.16
  5. Step 5: Solve for x
    x = 14,303,544,443.16/190,334.10
  6. Step 6: Final answer
    x = 75,149.67

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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.