Home / 213,651.10-294,805.76-122,989.54

Finding the Fourth Proportional to 213,651.10, 294,805.76 and 122,989.54

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Solution

The fourth proportional to 213,651.10, 294,805.76 and 122,989.54 is: 169,706.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,651.10 : 294,805.76 = 122,989.54 : x
  2. Step 2: Convert to fraction form
    213,651.10/294,805.76 = 122,989.54/x
  3. Step 3: Cross multiply
    213,651.10x = 294,805.76 × 122,989.54
  4. Step 4: Simplify right side
    213,651.10x = 36,258,024,811.75
  5. Step 5: Solve for x
    x = 36,258,024,811.75/213,651.10
  6. Step 6: Final answer
    x = 169,706.71

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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.