Home / 190,707.21-263,177.51-105,825.69

Finding the Fourth Proportional to 190,707.21, 263,177.51 and 105,825.69

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Solution

The fourth proportional to 190,707.21, 263,177.51 and 105,825.69 is: 146,040.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,707.21 : 263,177.51 = 105,825.69 : x
  2. Step 2: Convert to fraction form
    190,707.21/263,177.51 = 105,825.69/x
  3. Step 3: Cross multiply
    190,707.21x = 263,177.51 × 105,825.69
  4. Step 4: Simplify right side
    190,707.21x = 27,850,941,059.10
  5. Step 5: Solve for x
    x = 27,850,941,059.10/190,707.21
  6. Step 6: Final answer
    x = 146,040.32

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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.