Home / 149,652.26-206,521.33-81,669.78

Finding the Fourth Proportional to 149,652.26, 206,521.33 and 81,669.78

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Solution

The fourth proportional to 149,652.26, 206,521.33 and 81,669.78 is: 112,704.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,652.26 : 206,521.33 = 81,669.78 : x
  2. Step 2: Convert to fraction form
    149,652.26/206,521.33 = 81,669.78/x
  3. Step 3: Cross multiply
    149,652.26x = 206,521.33 × 81,669.78
  4. Step 4: Simplify right side
    149,652.26x = 16,866,551,586.41
  5. Step 5: Solve for x
    x = 16,866,551,586.41/149,652.26
  6. Step 6: Final answer
    x = 112,704.96

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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.