Home / 198,890.74-298,306.47-65,771.69

Finding the Fourth Proportional to 198,890.74, 298,306.47 and 65,771.69

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Solution

The fourth proportional to 198,890.74, 298,306.47 and 65,771.69 is: 98,647.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,890.74 : 298,306.47 = 65,771.69 : x
  2. Step 2: Convert to fraction form
    198,890.74/298,306.47 = 65,771.69/x
  3. Step 3: Cross multiply
    198,890.74x = 298,306.47 × 65,771.69
  4. Step 4: Simplify right side
    198,890.74x = 19,620,120,669.83
  5. Step 5: Solve for x
    x = 19,620,120,669.83/198,890.74
  6. Step 6: Final answer
    x = 98,647.74

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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.