Home / 119,912.80-179,853.36-31,172.44

Finding the Fourth Proportional to 119,912.80, 179,853.36 and 31,172.44

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Solution

The fourth proportional to 119,912.80, 179,853.36 and 31,172.44 is: 46,754.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,912.80 : 179,853.36 = 31,172.44 : x
  2. Step 2: Convert to fraction form
    119,912.80/179,853.36 = 31,172.44/x
  3. Step 3: Cross multiply
    119,912.80x = 179,853.36 × 31,172.44
  4. Step 4: Simplify right side
    119,912.80x = 5,606,468,073.40
  5. Step 5: Solve for x
    x = 5,606,468,073.40/119,912.80
  6. Step 6: Final answer
    x = 46,754.54

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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.