Home / 211,606.78-317,458.62-91,683.69

Finding the Fourth Proportional to 211,606.78, 317,458.62 and 91,683.69

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Solution

The fourth proportional to 211,606.78, 317,458.62 and 91,683.69 is: 137,546.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,606.78 : 317,458.62 = 91,683.69 : x
  2. Step 2: Convert to fraction form
    211,606.78/317,458.62 = 91,683.69/x
  3. Step 3: Cross multiply
    211,606.78x = 317,458.62 × 91,683.69
  4. Step 4: Simplify right side
    211,606.78x = 29,105,775,658.20
  5. Step 5: Solve for x
    x = 29,105,775,658.20/211,606.78
  6. Step 6: Final answer
    x = 137,546.52

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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.