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Finding the Fourth Proportional to 109,405.17, 150,979.19 and 59,104.17

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Solution

The fourth proportional to 109,405.17, 150,979.19 and 59,104.17 is: 81,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,405.17 : 150,979.19 = 59,104.17 : x
  2. Step 2: Convert to fraction form
    109,405.17/150,979.19 = 59,104.17/x
  3. Step 3: Cross multiply
    109,405.17x = 150,979.19 × 59,104.17
  4. Step 4: Simplify right side
    109,405.17x = 8,923,499,416.70
  5. Step 5: Solve for x
    x = 8,923,499,416.70/109,405.17
  6. Step 6: Final answer
    x = 81,563.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.