Home / 146,021.20-219,015.60-40,850.80

Finding the Fourth Proportional to 146,021.20, 219,015.60 and 40,850.80

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Solution

The fourth proportional to 146,021.20, 219,015.60 and 40,850.80 is: 61,271.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,021.20 : 219,015.60 = 40,850.80 : x
  2. Step 2: Convert to fraction form
    146,021.20/219,015.60 = 40,850.80/x
  3. Step 3: Cross multiply
    146,021.20x = 219,015.60 × 40,850.80
  4. Step 4: Simplify right side
    146,021.20x = 8,946,962,472.48
  5. Step 5: Solve for x
    x = 8,946,962,472.48/146,021.20
  6. Step 6: Final answer
    x = 61,271.67

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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.