Home / 190,396.90-262,758.18-105,512.14

Finding the Fourth Proportional to 190,396.90, 262,758.18 and 105,512.14

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Solution

The fourth proportional to 190,396.90, 262,758.18 and 105,512.14 is: 145,612.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,396.90 : 262,758.18 = 105,512.14 : x
  2. Step 2: Convert to fraction form
    190,396.90/262,758.18 = 105,512.14/x
  3. Step 3: Cross multiply
    190,396.90x = 262,758.18 × 105,512.14
  4. Step 4: Simplify right side
    190,396.90x = 27,724,177,874.31
  5. Step 5: Solve for x
    x = 27,724,177,874.31/190,396.90
  6. Step 6: Final answer
    x = 145,612.55

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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.