Home / 339,786.27-509,681.03-103,131

Finding the Fourth Proportional to 339,786.27, 509,681.03 and 103,131

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Solution

The fourth proportional to 339,786.27, 509,681.03 and 103,131 is: 154,696.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,786.27 : 509,681.03 = 103,131 : x
  2. Step 2: Convert to fraction form
    339,786.27/509,681.03 = 103,131/x
  3. Step 3: Cross multiply
    339,786.27x = 509,681.03 × 103,131
  4. Step 4: Simplify right side
    339,786.27x = 52,563,913,789.28
  5. Step 5: Solve for x
    x = 52,563,913,789.28/339,786.27
  6. Step 6: Final answer
    x = 154,696.99

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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.