Home / 223,698.20-308,708.67-126,908.54

Finding the Fourth Proportional to 223,698.20, 308,708.67 and 126,908.54

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Solution

The fourth proportional to 223,698.20, 308,708.67 and 126,908.54 is: 175,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,698.20 : 308,708.67 = 126,908.54 : x
  2. Step 2: Convert to fraction form
    223,698.20/308,708.67 = 126,908.54/x
  3. Step 3: Cross multiply
    223,698.20x = 308,708.67 × 126,908.54
  4. Step 4: Simplify right side
    223,698.20x = 39,177,765,051.50
  5. Step 5: Solve for x
    x = 39,177,765,051.50/223,698.20
  6. Step 6: Final answer
    x = 175,136.71

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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.