Home / 189,990.36-284,797.62-89,974.80

Finding the Fourth Proportional to 189,990.36, 284,797.62 and 89,974.80

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Solution

The fourth proportional to 189,990.36, 284,797.62 and 89,974.80 is: 134,873.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,990.36 : 284,797.62 = 89,974.80 : x
  2. Step 2: Convert to fraction form
    189,990.36/284,797.62 = 89,974.80/x
  3. Step 3: Cross multiply
    189,990.36x = 284,797.62 × 89,974.80
  4. Step 4: Simplify right side
    189,990.36x = 25,624,608,899.98
  5. Step 5: Solve for x
    x = 25,624,608,899.98/189,990.36
  6. Step 6: Final answer
    x = 134,873.21

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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.