Home / 139,424.07-209,135.65-39,584.33

Finding the Fourth Proportional to 139,424.07, 209,135.65 and 39,584.33

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Solution

The fourth proportional to 139,424.07, 209,135.65 and 39,584.33 is: 59,376.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,424.07 : 209,135.65 = 39,584.33 : x
  2. Step 2: Convert to fraction form
    139,424.07/209,135.65 = 39,584.33/x
  3. Step 3: Cross multiply
    139,424.07x = 209,135.65 × 39,584.33
  4. Step 4: Simplify right side
    139,424.07x = 8,278,494,584.36
  5. Step 5: Solve for x
    x = 8,278,494,584.36/139,424.07
  6. Step 6: Final answer
    x = 59,376.37

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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.