Home / 190,673.28-263,129.16-105,790.14

Finding the Fourth Proportional to 190,673.28, 263,129.16 and 105,790.14

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Solution

The fourth proportional to 190,673.28, 263,129.16 and 105,790.14 is: 145,990.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,673.28 : 263,129.16 = 105,790.14 : x
  2. Step 2: Convert to fraction form
    190,673.28/263,129.16 = 105,790.14/x
  3. Step 3: Cross multiply
    190,673.28x = 263,129.16 × 105,790.14
  4. Step 4: Simplify right side
    190,673.28x = 27,836,470,674.48
  5. Step 5: Solve for x
    x = 27,836,470,674.48/190,673.28
  6. Step 6: Final answer
    x = 145,990.41

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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.