Home / 319,426.58-479,036.21-106,137.21

Finding the Fourth Proportional to 319,426.58, 479,036.21 and 106,137.21

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Solution

The fourth proportional to 319,426.58, 479,036.21 and 106,137.21 is: 159,171.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,426.58 : 479,036.21 = 106,137.21 : x
  2. Step 2: Convert to fraction form
    319,426.58/479,036.21 = 106,137.21/x
  3. Step 3: Cross multiply
    319,426.58x = 479,036.21 × 106,137.21
  4. Step 4: Simplify right side
    319,426.58x = 50,843,566,287.69
  5. Step 5: Solve for x
    x = 50,843,566,287.69/319,426.58
  6. Step 6: Final answer
    x = 159,171.37

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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.