Home / 181,676.72-272,121.20-87,986

Finding the Fourth Proportional to 181,676.72, 272,121.20 and 87,986

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Solution

The fourth proportional to 181,676.72, 272,121.20 and 87,986 is: 131,788.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,676.72 : 272,121.20 = 87,986 : x
  2. Step 2: Convert to fraction form
    181,676.72/272,121.20 = 87,986/x
  3. Step 3: Cross multiply
    181,676.72x = 272,121.20 × 87,986
  4. Step 4: Simplify right side
    181,676.72x = 23,942,855,903.20
  5. Step 5: Solve for x
    x = 23,942,855,903.20/181,676.72
  6. Step 6: Final answer
    x = 131,788.24

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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.