Home / 139,984.21-209,945.22-40,143.97

Finding the Fourth Proportional to 139,984.21, 209,945.22 and 40,143.97

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Solution

The fourth proportional to 139,984.21, 209,945.22 and 40,143.97 is: 60,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,984.21 : 209,945.22 = 40,143.97 : x
  2. Step 2: Convert to fraction form
    139,984.21/209,945.22 = 40,143.97/x
  3. Step 3: Cross multiply
    139,984.21x = 209,945.22 × 40,143.97
  4. Step 4: Simplify right side
    139,984.21x = 8,428,034,613.32
  5. Step 5: Solve for x
    x = 8,428,034,613.32/139,984.21
  6. Step 6: Final answer
    x = 60,207.04

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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.