Home / 219,739.78-303,239.23-124,249.87

Finding the Fourth Proportional to 219,739.78, 303,239.23 and 124,249.87

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Solution

The fourth proportional to 219,739.78, 303,239.23 and 124,249.87 is: 171,463.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,739.78 : 303,239.23 = 124,249.87 : x
  2. Step 2: Convert to fraction form
    219,739.78/303,239.23 = 124,249.87/x
  3. Step 3: Cross multiply
    219,739.78x = 303,239.23 × 124,249.87
  4. Step 4: Simplify right side
    219,739.78x = 37,677,434,906.40
  5. Step 5: Solve for x
    x = 37,677,434,906.40/219,739.78
  6. Step 6: Final answer
    x = 171,463.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.