Home / 190,651.68-263,099.64-105,768.76

Finding the Fourth Proportional to 190,651.68, 263,099.64 and 105,768.76

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Solution

The fourth proportional to 190,651.68, 263,099.64 and 105,768.76 is: 145,961.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,651.68 : 263,099.64 = 105,768.76 : x
  2. Step 2: Convert to fraction form
    190,651.68/263,099.64 = 105,768.76/x
  3. Step 3: Cross multiply
    190,651.68x = 263,099.64 × 105,768.76
  4. Step 4: Simplify right side
    190,651.68x = 27,827,722,679.25
  5. Step 5: Solve for x
    x = 27,827,722,679.25/190,651.68
  6. Step 6: Final answer
    x = 145,961.07

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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.