Home / 181,420.66-272,163.90-74,745.38

Finding the Fourth Proportional to 181,420.66, 272,163.90 and 74,745.38

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Solution

The fourth proportional to 181,420.66, 272,163.90 and 74,745.38 is: 112,131.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,420.66 : 272,163.90 = 74,745.38 : x
  2. Step 2: Convert to fraction form
    181,420.66/272,163.90 = 74,745.38/x
  3. Step 3: Cross multiply
    181,420.66x = 272,163.90 × 74,745.38
  4. Step 4: Simplify right side
    181,420.66x = 20,342,994,668.04
  5. Step 5: Solve for x
    x = 20,342,994,668.04/181,420.66
  6. Step 6: Final answer
    x = 112,131.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.