Home / 139,935.37-209,923.91-45,134.39

Finding the Fourth Proportional to 139,935.37, 209,923.91 and 45,134.39

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Solution

The fourth proportional to 139,935.37, 209,923.91 and 45,134.39 is: 67,708.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,935.37 : 209,923.91 = 45,134.39 : x
  2. Step 2: Convert to fraction form
    139,935.37/209,923.91 = 45,134.39/x
  3. Step 3: Cross multiply
    139,935.37x = 209,923.91 × 45,134.39
  4. Step 4: Simplify right side
    139,935.37x = 9,474,786,574.65
  5. Step 5: Solve for x
    x = 9,474,786,574.65/139,935.37
  6. Step 6: Final answer
    x = 67,708.31

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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.