Home / 111,928.89-154,458.27-66,596.46

Finding the Fourth Proportional to 111,928.89, 154,458.27 and 66,596.46

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Solution

The fourth proportional to 111,928.89, 154,458.27 and 66,596.46 is: 91,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,928.89 : 154,458.27 = 66,596.46 : x
  2. Step 2: Convert to fraction form
    111,928.89/154,458.27 = 66,596.46/x
  3. Step 3: Cross multiply
    111,928.89x = 154,458.27 × 66,596.46
  4. Step 4: Simplify right side
    111,928.89x = 10,286,373,999.72
  5. Step 5: Solve for x
    x = 10,286,373,999.72/111,928.89
  6. Step 6: Final answer
    x = 91,900.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.