Home / 112,135.41-154,745.64-61,147.98

Finding the Fourth Proportional to 112,135.41, 154,745.64 and 61,147.98

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Solution

The fourth proportional to 112,135.41, 154,745.64 and 61,147.98 is: 84,383.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,135.41 : 154,745.64 = 61,147.98 : x
  2. Step 2: Convert to fraction form
    112,135.41/154,745.64 = 61,147.98/x
  3. Step 3: Cross multiply
    112,135.41x = 154,745.64 × 61,147.98
  4. Step 4: Simplify right side
    112,135.41x = 9,462,383,299.81
  5. Step 5: Solve for x
    x = 9,462,383,299.81/112,135.41
  6. Step 6: Final answer
    x = 84,383.54

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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.