Home / 190,379.30-262,639.06-109,787.54

Finding the Fourth Proportional to 190,379.30, 262,639.06 and 109,787.54

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Solution

The fourth proportional to 190,379.30, 262,639.06 and 109,787.54 is: 151,458.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,379.30 : 262,639.06 = 109,787.54 : x
  2. Step 2: Convert to fraction form
    190,379.30/262,639.06 = 109,787.54/x
  3. Step 3: Cross multiply
    190,379.30x = 262,639.06 × 109,787.54
  4. Step 4: Simplify right side
    190,379.30x = 28,834,494,717.65
  5. Step 5: Solve for x
    x = 28,834,494,717.65/190,379.30
  6. Step 6: Final answer
    x = 151,458.14

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Why These Related Problems?

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