Home / 197,081.78-271,968.69-112,197.62

Finding the Fourth Proportional to 197,081.78, 271,968.69 and 112,197.62

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Solution

The fourth proportional to 197,081.78, 271,968.69 and 112,197.62 is: 154,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,081.78 : 271,968.69 = 112,197.62 : x
  2. Step 2: Convert to fraction form
    197,081.78/271,968.69 = 112,197.62/x
  3. Step 3: Cross multiply
    197,081.78x = 271,968.69 × 112,197.62
  4. Step 4: Simplify right side
    197,081.78x = 30,514,239,732.52
  5. Step 5: Solve for x
    x = 30,514,239,732.52/197,081.78
  6. Step 6: Final answer
    x = 154,830.34

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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.