Home / 198,756.98-298,015.07-89,191.81

Finding the Fourth Proportional to 198,756.98, 298,015.07 and 89,191.81

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Solution

The fourth proportional to 198,756.98, 298,015.07 and 89,191.81 is: 133,733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,756.98 : 298,015.07 = 89,191.81 : x
  2. Step 2: Convert to fraction form
    198,756.98/298,015.07 = 89,191.81/x
  3. Step 3: Cross multiply
    198,756.98x = 298,015.07 × 89,191.81
  4. Step 4: Simplify right side
    198,756.98x = 26,580,504,348.92
  5. Step 5: Solve for x
    x = 26,580,504,348.92/198,756.98
  6. Step 6: Final answer
    x = 133,733.69

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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.