Home / 111,334.50-166,583.25-78,119.37

Finding the Fourth Proportional to 111,334.50, 166,583.25 and 78,119.37

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Solution

The fourth proportional to 111,334.50, 166,583.25 and 78,119.37 is: 116,885.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,334.50 : 166,583.25 = 78,119.37 : x
  2. Step 2: Convert to fraction form
    111,334.50/166,583.25 = 78,119.37/x
  3. Step 3: Cross multiply
    111,334.50x = 166,583.25 × 78,119.37
  4. Step 4: Simplify right side
    111,334.50x = 13,013,378,542.55
  5. Step 5: Solve for x
    x = 13,013,378,542.55/111,334.50
  6. Step 6: Final answer
    x = 116,885.41

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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.