Home / 198,315.36-273,573.68-126,620

Finding the Fourth Proportional to 198,315.36, 273,573.68 and 126,620

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Solution

The fourth proportional to 198,315.36, 273,573.68 and 126,620 is: 174,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,315.36 : 273,573.68 = 126,620 : x
  2. Step 2: Convert to fraction form
    198,315.36/273,573.68 = 126,620/x
  3. Step 3: Cross multiply
    198,315.36x = 273,573.68 × 126,620
  4. Step 4: Simplify right side
    198,315.36x = 34,639,899,361.60
  5. Step 5: Solve for x
    x = 34,639,899,361.60/198,315.36
  6. Step 6: Final answer
    x = 174,670.78

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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.