Home / 319,328.43-479,029.70-106,115.37

Finding the Fourth Proportional to 319,328.43, 479,029.70 and 106,115.37

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Solution

The fourth proportional to 319,328.43, 479,029.70 and 106,115.37 is: 159,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,328.43 : 479,029.70 = 106,115.37 : x
  2. Step 2: Convert to fraction form
    319,328.43/479,029.70 = 106,115.37/x
  3. Step 3: Cross multiply
    319,328.43x = 479,029.70 × 106,115.37
  4. Step 4: Simplify right side
    319,328.43x = 50,832,411,728.52
  5. Step 5: Solve for x
    x = 50,832,411,728.52/319,328.43
  6. Step 6: Final answer
    x = 159,185.36

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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.