Home / 139,961.90-209,879.67-40,099.24

Finding the Fourth Proportional to 139,961.90, 209,879.67 and 40,099.24

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Solution

The fourth proportional to 139,961.90, 209,879.67 and 40,099.24 is: 60,130.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,961.90 : 209,879.67 = 40,099.24 : x
  2. Step 2: Convert to fraction form
    139,961.90/209,879.67 = 40,099.24/x
  3. Step 3: Cross multiply
    139,961.90x = 209,879.67 × 40,099.24
  4. Step 4: Simplify right side
    139,961.90x = 8,416,014,209.05
  5. Step 5: Solve for x
    x = 8,416,014,209.05/139,961.90
  6. Step 6: Final answer
    x = 60,130.75

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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.