Home / 111,922.41-154,452.64-61,621.41

Finding the Fourth Proportional to 111,922.41, 154,452.64 and 61,621.41

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Solution

The fourth proportional to 111,922.41, 154,452.64 and 61,621.41 is: 85,037.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,922.41 : 154,452.64 = 61,621.41 : x
  2. Step 2: Convert to fraction form
    111,922.41/154,452.64 = 61,621.41/x
  3. Step 3: Cross multiply
    111,922.41x = 154,452.64 × 61,621.41
  4. Step 4: Simplify right side
    111,922.41x = 9,517,589,455.02
  5. Step 5: Solve for x
    x = 9,517,589,455.02/111,922.41
  6. Step 6: Final answer
    x = 85,037.39

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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.