Home / 181,619.87-250,629.11-99,940.49

Finding the Fourth Proportional to 181,619.87, 250,629.11 and 99,940.49

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Solution

The fourth proportional to 181,619.87, 250,629.11 and 99,940.49 is: 137,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,619.87 : 250,629.11 = 99,940.49 : x
  2. Step 2: Convert to fraction form
    181,619.87/250,629.11 = 99,940.49/x
  3. Step 3: Cross multiply
    181,619.87x = 250,629.11 × 99,940.49
  4. Step 4: Simplify right side
    181,619.87x = 25,047,996,061.66
  5. Step 5: Solve for x
    x = 25,047,996,061.66/181,619.87
  6. Step 6: Final answer
    x = 137,914.40

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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.