Home / 192,771.15-289,176.33-66,394.95

Finding the Fourth Proportional to 192,771.15, 289,176.33 and 66,394.95

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Solution

The fourth proportional to 192,771.15, 289,176.33 and 66,394.95 is: 99,599.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,771.15 : 289,176.33 = 66,394.95 : x
  2. Step 2: Convert to fraction form
    192,771.15/289,176.33 = 66,394.95/x
  3. Step 3: Cross multiply
    192,771.15x = 289,176.33 × 66,394.95
  4. Step 4: Simplify right side
    192,771.15x = 19,199,847,971.53
  5. Step 5: Solve for x
    x = 19,199,847,971.53/192,771.15
  6. Step 6: Final answer
    x = 99,599.18

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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.