Home / 139,973.88-209,917.76-40,107.32

Finding the Fourth Proportional to 139,973.88, 209,917.76 and 40,107.32

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Solution

The fourth proportional to 139,973.88, 209,917.76 and 40,107.32 is: 60,148.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,973.88 : 209,917.76 = 40,107.32 : x
  2. Step 2: Convert to fraction form
    139,973.88/209,917.76 = 40,107.32/x
  3. Step 3: Cross multiply
    139,973.88x = 209,917.76 × 40,107.32
  4. Step 4: Simplify right side
    139,973.88x = 8,419,237,523.88
  5. Step 5: Solve for x
    x = 8,419,237,523.88/139,973.88
  6. Step 6: Final answer
    x = 60,148.63

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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.