Home / 190,286.54-262,595.76-105,401.78

Finding the Fourth Proportional to 190,286.54, 262,595.76 and 105,401.78

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Solution

The fourth proportional to 190,286.54, 262,595.76 and 105,401.78 is: 145,454.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,286.54 : 262,595.76 = 105,401.78 : x
  2. Step 2: Convert to fraction form
    190,286.54/262,595.76 = 105,401.78/x
  3. Step 3: Cross multiply
    190,286.54x = 262,595.76 × 105,401.78
  4. Step 4: Simplify right side
    190,286.54x = 27,678,060,524.45
  5. Step 5: Solve for x
    x = 27,678,060,524.45/190,286.54
  6. Step 6: Final answer
    x = 145,454.64

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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.