Home / 211,939.82-317,896.85-75,169.70

Finding the Fourth Proportional to 211,939.82, 317,896.85 and 75,169.70

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Solution

The fourth proportional to 211,939.82, 317,896.85 and 75,169.70 is: 112,749.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,939.82 : 317,896.85 = 75,169.70 : x
  2. Step 2: Convert to fraction form
    211,939.82/317,896.85 = 75,169.70/x
  3. Step 3: Cross multiply
    211,939.82x = 317,896.85 × 75,169.70
  4. Step 4: Simplify right side
    211,939.82x = 23,896,208,880.11
  5. Step 5: Solve for x
    x = 23,896,208,880.11/211,939.82
  6. Step 6: Final answer
    x = 112,749.98

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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.