Home / 139,974.63-209,918.88-40,108.07

Finding the Fourth Proportional to 139,974.63, 209,918.88 and 40,108.07

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Solution

The fourth proportional to 139,974.63, 209,918.88 and 40,108.07 is: 60,149.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,974.63 : 209,918.88 = 40,108.07 : x
  2. Step 2: Convert to fraction form
    139,974.63/209,918.88 = 40,108.07/x
  3. Step 3: Cross multiply
    139,974.63x = 209,918.88 × 40,108.07
  4. Step 4: Simplify right side
    139,974.63x = 8,419,440,083.77
  5. Step 5: Solve for x
    x = 8,419,440,083.77/139,974.63
  6. Step 6: Final answer
    x = 60,149.76

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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.