Home / 149,822.94-206,756.36-81,840.85

Finding the Fourth Proportional to 149,822.94, 206,756.36 and 81,840.85

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Solution

The fourth proportional to 149,822.94, 206,756.36 and 81,840.85 is: 112,940.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,822.94 : 206,756.36 = 81,840.85 : x
  2. Step 2: Convert to fraction form
    149,822.94/206,756.36 = 81,840.85/x
  3. Step 3: Cross multiply
    149,822.94x = 206,756.36 × 81,840.85
  4. Step 4: Simplify right side
    149,822.94x = 16,921,115,836.10
  5. Step 5: Solve for x
    x = 16,921,115,836.10/149,822.94
  6. Step 6: Final answer
    x = 112,940.76

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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.