Home / 197,812.80-296,639.28-122,821.92

Finding the Fourth Proportional to 197,812.80, 296,639.28 and 122,821.92

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Solution

The fourth proportional to 197,812.80, 296,639.28 and 122,821.92 is: 184,183.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,812.80 : 296,639.28 = 122,821.92 : x
  2. Step 2: Convert to fraction form
    197,812.80/296,639.28 = 122,821.92/x
  3. Step 3: Cross multiply
    197,812.80x = 296,639.28 × 122,821.92
  4. Step 4: Simplify right side
    197,812.80x = 36,433,805,917.02
  5. Step 5: Solve for x
    x = 36,433,805,917.02/197,812.80
  6. Step 6: Final answer
    x = 184,183.26

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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.