Home / 128,286.56-192,461.38-44,047.96

Finding the Fourth Proportional to 128,286.56, 192,461.38 and 44,047.96

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Solution

The fourth proportional to 128,286.56, 192,461.38 and 44,047.96 is: 66,082.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,286.56 : 192,461.38 = 44,047.96 : x
  2. Step 2: Convert to fraction form
    128,286.56/192,461.38 = 44,047.96/x
  3. Step 3: Cross multiply
    128,286.56x = 192,461.38 × 44,047.96
  4. Step 4: Simplify right side
    128,286.56x = 8,477,530,576.51
  5. Step 5: Solve for x
    x = 8,477,530,576.51/128,286.56
  6. Step 6: Final answer
    x = 66,082.76

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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.