Home / 139,325.97-208,923.09-53,976.81

Finding the Fourth Proportional to 139,325.97, 208,923.09 and 53,976.81

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Solution

The fourth proportional to 139,325.97, 208,923.09 and 53,976.81 is: 80,939.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,325.97 : 208,923.09 = 53,976.81 : x
  2. Step 2: Convert to fraction form
    139,325.97/208,923.09 = 53,976.81/x
  3. Step 3: Cross multiply
    139,325.97x = 208,923.09 × 53,976.81
  4. Step 4: Simplify right side
    139,325.97x = 11,277,001,933.54
  5. Step 5: Solve for x
    x = 11,277,001,933.54/139,325.97
  6. Step 6: Final answer
    x = 80,939.70

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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.