Home / 190,667.52-263,121.21-105,784.38

Finding the Fourth Proportional to 190,667.52, 263,121.21 and 105,784.38

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Solution

The fourth proportional to 190,667.52, 263,121.21 and 105,784.38 is: 145,982.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,667.52 : 263,121.21 = 105,784.38 : x
  2. Step 2: Convert to fraction form
    190,667.52/263,121.21 = 105,784.38/x
  3. Step 3: Cross multiply
    190,667.52x = 263,121.21 × 105,784.38
  4. Step 4: Simplify right side
    190,667.52x = 27,834,114,064.70
  5. Step 5: Solve for x
    x = 27,834,114,064.70/190,667.52
  6. Step 6: Final answer
    x = 145,982.46

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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.