Home / 181,986.45-251,007.60-120,621.66

Finding the Fourth Proportional to 181,986.45, 251,007.60 and 120,621.66

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Solution

The fourth proportional to 181,986.45, 251,007.60 and 120,621.66 is: 166,369.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,986.45 : 251,007.60 = 120,621.66 : x
  2. Step 2: Convert to fraction form
    181,986.45/251,007.60 = 120,621.66/x
  3. Step 3: Cross multiply
    181,986.45x = 251,007.60 × 120,621.66
  4. Step 4: Simplify right side
    181,986.45x = 30,276,953,384.62
  5. Step 5: Solve for x
    x = 30,276,953,384.62/181,986.45
  6. Step 6: Final answer
    x = 166,369.27

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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.