Home / 192,823.12-289,190.94-68,164.12

Finding the Fourth Proportional to 192,823.12, 289,190.94 and 68,164.12

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Solution

The fourth proportional to 192,823.12, 289,190.94 and 68,164.12 is: 102,230.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,823.12 : 289,190.94 = 68,164.12 : x
  2. Step 2: Convert to fraction form
    192,823.12/289,190.94 = 68,164.12/x
  3. Step 3: Cross multiply
    192,823.12x = 289,190.94 × 68,164.12
  4. Step 4: Simplify right side
    192,823.12x = 19,712,445,937.07
  5. Step 5: Solve for x
    x = 19,712,445,937.07/192,823.12
  6. Step 6: Final answer
    x = 102,230.72

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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.