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Finding the Fourth Proportional to 102,992.67, 154,504.80 and 43,812.45

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Solution

The fourth proportional to 102,992.67, 154,504.80 and 43,812.45 is: 65,725.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,992.67 : 154,504.80 = 43,812.45 : x
  2. Step 2: Convert to fraction form
    102,992.67/154,504.80 = 43,812.45/x
  3. Step 3: Cross multiply
    102,992.67x = 154,504.80 × 43,812.45
  4. Step 4: Simplify right side
    102,992.67x = 6,769,233,824.76
  5. Step 5: Solve for x
    x = 6,769,233,824.76/102,992.67
  6. Step 6: Final answer
    x = 65,725.39

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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.