Home / 120,745.32-180,948.96-102,882.84

Finding the Fourth Proportional to 120,745.32, 180,948.96 and 102,882.84

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Solution

The fourth proportional to 120,745.32, 180,948.96 and 102,882.84 is: 154,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,745.32 : 180,948.96 = 102,882.84 : x
  2. Step 2: Convert to fraction form
    120,745.32/180,948.96 = 102,882.84/x
  3. Step 3: Cross multiply
    120,745.32x = 180,948.96 × 102,882.84
  4. Step 4: Simplify right side
    120,745.32x = 18,616,542,899.85
  5. Step 5: Solve for x
    x = 18,616,542,899.85/120,745.32
  6. Step 6: Final answer
    x = 154,180.24

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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.