Home / 198,400.79-273,750.49-117,855.47

Finding the Fourth Proportional to 198,400.79, 273,750.49 and 117,855.47

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Solution

The fourth proportional to 198,400.79, 273,750.49 and 117,855.47 is: 162,615.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,400.79 : 273,750.49 = 117,855.47 : x
  2. Step 2: Convert to fraction form
    198,400.79/273,750.49 = 117,855.47/x
  3. Step 3: Cross multiply
    198,400.79x = 273,750.49 × 117,855.47
  4. Step 4: Simplify right side
    198,400.79x = 32,262,992,661.68
  5. Step 5: Solve for x
    x = 32,262,992,661.68/198,400.79
  6. Step 6: Final answer
    x = 162,615.24

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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.