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Finding the Fourth Proportional to 186,950.09, 279,978.08 and 107,824.43

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Solution

The fourth proportional to 186,950.09, 279,978.08 and 107,824.43 is: 161,478.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,950.09 : 279,978.08 = 107,824.43 : x
  2. Step 2: Convert to fraction form
    186,950.09/279,978.08 = 107,824.43/x
  3. Step 3: Cross multiply
    186,950.09x = 279,978.08 × 107,824.43
  4. Step 4: Simplify right side
    186,950.09x = 30,188,474,949.48
  5. Step 5: Solve for x
    x = 30,188,474,949.48/186,950.09
  6. Step 6: Final answer
    x = 161,478.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.