Home / 139,942.56-209,851.92-40,080

Finding the Fourth Proportional to 139,942.56, 209,851.92 and 40,080

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Solution

The fourth proportional to 139,942.56, 209,851.92 and 40,080 is: 60,102.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,942.56 : 209,851.92 = 40,080 : x
  2. Step 2: Convert to fraction form
    139,942.56/209,851.92 = 40,080/x
  3. Step 3: Cross multiply
    139,942.56x = 209,851.92 × 40,080
  4. Step 4: Simplify right side
    139,942.56x = 8,410,864,953.60
  5. Step 5: Solve for x
    x = 8,410,864,953.60/139,942.56
  6. Step 6: Final answer
    x = 60,102.27

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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.