Home / 211,664.69-317,585.89-131,769.48

Finding the Fourth Proportional to 211,664.69, 317,585.89 and 131,769.48

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Solution

The fourth proportional to 211,664.69, 317,585.89 and 131,769.48 is: 197,709.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,664.69 : 317,585.89 = 131,769.48 : x
  2. Step 2: Convert to fraction form
    211,664.69/317,585.89 = 131,769.48/x
  3. Step 3: Cross multiply
    211,664.69x = 317,585.89 × 131,769.48
  4. Step 4: Simplify right side
    211,664.69x = 41,848,128,565.69
  5. Step 5: Solve for x
    x = 41,848,128,565.69/211,664.69
  6. Step 6: Final answer
    x = 197,709.54

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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.