Home / 149,596.63-206,438.60-85,072.87

Finding the Fourth Proportional to 149,596.63, 206,438.60 and 85,072.87

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Solution

The fourth proportional to 149,596.63, 206,438.60 and 85,072.87 is: 117,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,596.63 : 206,438.60 = 85,072.87 : x
  2. Step 2: Convert to fraction form
    149,596.63/206,438.60 = 85,072.87/x
  3. Step 3: Cross multiply
    149,596.63x = 206,438.60 × 85,072.87
  4. Step 4: Simplify right side
    149,596.63x = 17,562,324,180.78
  5. Step 5: Solve for x
    x = 17,562,324,180.78/149,596.63
  6. Step 6: Final answer
    x = 117,397.86

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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.