Home / 198,795.88-298,185.66-80,468.20

Finding the Fourth Proportional to 198,795.88, 298,185.66 and 80,468.20

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Solution

The fourth proportional to 198,795.88, 298,185.66 and 80,468.20 is: 120,699.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,795.88 : 298,185.66 = 80,468.20 : x
  2. Step 2: Convert to fraction form
    198,795.88/298,185.66 = 80,468.20/x
  3. Step 3: Cross multiply
    198,795.88x = 298,185.66 × 80,468.20
  4. Step 4: Simplify right side
    198,795.88x = 23,994,463,326.01
  5. Step 5: Solve for x
    x = 23,994,463,326.01/198,795.88
  6. Step 6: Final answer
    x = 120,699.00

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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.