Home / 190,190.92-262,442.28-105,286.72

Finding the Fourth Proportional to 190,190.92, 262,442.28 and 105,286.72

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Solution

The fourth proportional to 190,190.92, 262,442.28 and 105,286.72 is: 145,283.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,190.92 : 262,442.28 = 105,286.72 : x
  2. Step 2: Convert to fraction form
    190,190.92/262,442.28 = 105,286.72/x
  3. Step 3: Cross multiply
    190,190.92x = 262,442.28 × 105,286.72
  4. Step 4: Simplify right side
    190,190.92x = 27,631,686,850.52
  5. Step 5: Solve for x
    x = 27,631,686,850.52/190,190.92
  6. Step 6: Final answer
    x = 145,283.94

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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.