Home / 122,840.11-183,878.79-66,540.43

Finding the Fourth Proportional to 122,840.11, 183,878.79 and 66,540.43

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Solution

The fourth proportional to 122,840.11, 183,878.79 and 66,540.43 is: 99,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,840.11 : 183,878.79 = 66,540.43 : x
  2. Step 2: Convert to fraction form
    122,840.11/183,878.79 = 66,540.43/x
  3. Step 3: Cross multiply
    122,840.11x = 183,878.79 × 66,540.43
  4. Step 4: Simplify right side
    122,840.11x = 12,235,373,754.48
  5. Step 5: Solve for x
    x = 12,235,373,754.48/122,840.11
  6. Step 6: Final answer
    x = 99,604.06

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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.