Home / 190,055.06-262,274.46-105,176.78

Finding the Fourth Proportional to 190,055.06, 262,274.46 and 105,176.78

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Solution

The fourth proportional to 190,055.06, 262,274.46 and 105,176.78 is: 145,143.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,055.06 : 262,274.46 = 105,176.78 : x
  2. Step 2: Convert to fraction form
    190,055.06/262,274.46 = 105,176.78/x
  3. Step 3: Cross multiply
    190,055.06x = 262,274.46 × 105,176.78
  4. Step 4: Simplify right side
    190,055.06x = 27,585,183,179.04
  5. Step 5: Solve for x
    x = 27,585,183,179.04/190,055.06
  6. Step 6: Final answer
    x = 145,143.11

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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.