Home / 111,087.20-166,630.80-92,716.40

Finding the Fourth Proportional to 111,087.20, 166,630.80 and 92,716.40

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Solution

The fourth proportional to 111,087.20, 166,630.80 and 92,716.40 is: 139,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,087.20 : 166,630.80 = 92,716.40 : x
  2. Step 2: Convert to fraction form
    111,087.20/166,630.80 = 92,716.40/x
  3. Step 3: Cross multiply
    111,087.20x = 166,630.80 × 92,716.40
  4. Step 4: Simplify right side
    111,087.20x = 15,449,407,905.12
  5. Step 5: Solve for x
    x = 15,449,407,905.12/111,087.20
  6. Step 6: Final answer
    x = 139,074.60

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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.