Home / 211,969.26-317,717.10-91,887.62

Finding the Fourth Proportional to 211,969.26, 317,717.10 and 91,887.62

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Solution

The fourth proportional to 211,969.26, 317,717.10 and 91,887.62 is: 137,728.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,969.26 : 317,717.10 = 91,887.62 : x
  2. Step 2: Convert to fraction form
    211,969.26/317,717.10 = 91,887.62/x
  3. Step 3: Cross multiply
    211,969.26x = 317,717.10 × 91,887.62
  4. Step 4: Simplify right side
    211,969.26x = 29,194,266,563.72
  5. Step 5: Solve for x
    x = 29,194,266,563.72/211,969.26
  6. Step 6: Final answer
    x = 137,728.78

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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.