Home / 198,192.51-273,391.28-126,491.72

Finding the Fourth Proportional to 198,192.51, 273,391.28 and 126,491.72

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Solution

The fourth proportional to 198,192.51, 273,391.28 and 126,491.72 is: 174,485.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,192.51 : 273,391.28 = 126,491.72 : x
  2. Step 2: Convert to fraction form
    198,192.51/273,391.28 = 126,491.72/x
  3. Step 3: Cross multiply
    198,192.51x = 273,391.28 × 126,491.72
  4. Step 4: Simplify right side
    198,192.51x = 34,581,732,189.47
  5. Step 5: Solve for x
    x = 34,581,732,189.47/198,192.51
  6. Step 6: Final answer
    x = 174,485.57

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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.