Home / 190,361.54-262,709.43-105,476.78

Finding the Fourth Proportional to 190,361.54, 262,709.43 and 105,476.78

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Solution

The fourth proportional to 190,361.54, 262,709.43 and 105,476.78 is: 145,563.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,361.54 : 262,709.43 = 105,476.78 : x
  2. Step 2: Convert to fraction form
    190,361.54/262,709.43 = 105,476.78/x
  3. Step 3: Cross multiply
    190,361.54x = 262,709.43 × 105,476.78
  4. Step 4: Simplify right side
    190,361.54x = 27,709,745,013.27
  5. Step 5: Solve for x
    x = 27,709,745,013.27/190,361.54
  6. Step 6: Final answer
    x = 145,563.78

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1.5x scale

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.