Home / 192,815.10-289,222.65-68,156.10

Finding the Fourth Proportional to 192,815.10, 289,222.65 and 68,156.10

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Solution

The fourth proportional to 192,815.10, 289,222.65 and 68,156.10 is: 102,234.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,815.10 : 289,222.65 = 68,156.10 : x
  2. Step 2: Convert to fraction form
    192,815.10/289,222.65 = 68,156.10/x
  3. Step 3: Cross multiply
    192,815.10x = 289,222.65 × 68,156.10
  4. Step 4: Simplify right side
    192,815.10x = 19,712,287,855.67
  5. Step 5: Solve for x
    x = 19,712,287,855.67/192,815.10
  6. Step 6: Final answer
    x = 102,234.15

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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.