Home / 112,198.52-168,137.40-82,382.42

Finding the Fourth Proportional to 112,198.52, 168,137.40 and 82,382.42

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Solution

The fourth proportional to 112,198.52, 168,137.40 and 82,382.42 is: 123,455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,198.52 : 168,137.40 = 82,382.42 : x
  2. Step 2: Convert to fraction form
    112,198.52/168,137.40 = 82,382.42/x
  3. Step 3: Cross multiply
    112,198.52x = 168,137.40 × 82,382.42
  4. Step 4: Simplify right side
    112,198.52x = 13,851,565,904.51
  5. Step 5: Solve for x
    x = 13,851,565,904.51/112,198.52
  6. Step 6: Final answer
    x = 123,455.87

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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.