Home / 190,546.23-262,964.31-105,661.47

Finding the Fourth Proportional to 190,546.23, 262,964.31 and 105,661.47

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Solution

The fourth proportional to 190,546.23, 262,964.31 and 105,661.47 is: 145,818.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,546.23 : 262,964.31 = 105,661.47 : x
  2. Step 2: Convert to fraction form
    190,546.23/262,964.31 = 105,661.47/x
  3. Step 3: Cross multiply
    190,546.23x = 262,964.31 × 105,661.47
  4. Step 4: Simplify right side
    190,546.23x = 27,785,195,552.14
  5. Step 5: Solve for x
    x = 27,785,195,552.14/190,546.23
  6. Step 6: Final answer
    x = 145,818.66

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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.