Home / 139,344.20-209,017-34,163.27

Finding the Fourth Proportional to 139,344.20, 209,017 and 34,163.27

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Solution

The fourth proportional to 139,344.20, 209,017 and 34,163.27 is: 51,245.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,344.20 : 209,017 = 34,163.27 : x
  2. Step 2: Convert to fraction form
    139,344.20/209,017 = 34,163.27/x
  3. Step 3: Cross multiply
    139,344.20x = 209,017 × 34,163.27
  4. Step 4: Simplify right side
    139,344.20x = 7,140,703,160.51
  5. Step 5: Solve for x
    x = 7,140,703,160.51/139,344.20
  6. Step 6: Final answer
    x = 51,245.07

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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.