Home / 149,249.36-205,963.08-82,181.36

Finding the Fourth Proportional to 149,249.36, 205,963.08 and 82,181.36

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Solution

The fourth proportional to 149,249.36, 205,963.08 and 82,181.36 is: 113,409.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,249.36 : 205,963.08 = 82,181.36 : x
  2. Step 2: Convert to fraction form
    149,249.36/205,963.08 = 82,181.36/x
  3. Step 3: Cross multiply
    149,249.36x = 205,963.08 × 82,181.36
  4. Step 4: Simplify right side
    149,249.36x = 16,926,326,024.19
  5. Step 5: Solve for x
    x = 16,926,326,024.19/149,249.36
  6. Step 6: Final answer
    x = 113,409.71

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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.