Home / 139,163.37-208,855.75-50,442.18

Finding the Fourth Proportional to 139,163.37, 208,855.75 and 50,442.18

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Solution

The fourth proportional to 139,163.37, 208,855.75 and 50,442.18 is: 75,703.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,163.37 : 208,855.75 = 50,442.18 : x
  2. Step 2: Convert to fraction form
    139,163.37/208,855.75 = 50,442.18/x
  3. Step 3: Cross multiply
    139,163.37x = 208,855.75 × 50,442.18
  4. Step 4: Simplify right side
    139,163.37x = 10,535,138,291.26
  5. Step 5: Solve for x
    x = 10,535,138,291.26/139,163.37
  6. Step 6: Final answer
    x = 75,703.39

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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.