Home / 181,619.43-250,628.51-99,940.05

Finding the Fourth Proportional to 181,619.43, 250,628.51 and 99,940.05

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Solution

The fourth proportional to 181,619.43, 250,628.51 and 99,940.05 is: 137,913.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,619.43 : 250,628.51 = 99,940.05 : x
  2. Step 2: Convert to fraction form
    181,619.43/250,628.51 = 99,940.05/x
  3. Step 3: Cross multiply
    181,619.43x = 250,628.51 × 99,940.05
  4. Step 4: Simplify right side
    181,619.43x = 25,047,825,321.13
  5. Step 5: Solve for x
    x = 25,047,825,321.13/181,619.43
  6. Step 6: Final answer
    x = 137,913.80

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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.