Home / 190,787.88-263,288.28-119,209.38

Finding the Fourth Proportional to 190,787.88, 263,288.28 and 119,209.38

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Solution

The fourth proportional to 190,787.88, 263,288.28 and 119,209.38 is: 164,509.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,787.88 : 263,288.28 = 119,209.38 : x
  2. Step 2: Convert to fraction form
    190,787.88/263,288.28 = 119,209.38/x
  3. Step 3: Cross multiply
    190,787.88x = 263,288.28 × 119,209.38
  4. Step 4: Simplify right side
    190,787.88x = 31,386,432,620.07
  5. Step 5: Solve for x
    x = 31,386,432,620.07/190,787.88
  6. Step 6: Final answer
    x = 164,509.57

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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.