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Finding the Fourth Proportional to 68,154, 102,144.44 and 30,673.92

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Solution

The fourth proportional to 68,154, 102,144.44 and 30,673.92 is: 45,971.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,154 : 102,144.44 = 30,673.92 : x
  2. Step 2: Convert to fraction form
    68,154/102,144.44 = 30,673.92/x
  3. Step 3: Cross multiply
    68,154x = 102,144.44 × 30,673.92
  4. Step 4: Simplify right side
    68,154x = 3,133,170,381.00
  5. Step 5: Solve for x
    x = 3,133,170,381.00/68,154
  6. Step 6: Final answer
    x = 45,971.92

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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.