Home / 189,379.06-284,057.44-71,040.49

Finding the Fourth Proportional to 189,379.06, 284,057.44 and 71,040.49

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Solution

The fourth proportional to 189,379.06, 284,057.44 and 71,040.49 is: 106,556.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,379.06 : 284,057.44 = 71,040.49 : x
  2. Step 2: Convert to fraction form
    189,379.06/284,057.44 = 71,040.49/x
  3. Step 3: Cross multiply
    189,379.06x = 284,057.44 × 71,040.49
  4. Step 4: Simplify right side
    189,379.06x = 20,179,579,725.75
  5. Step 5: Solve for x
    x = 20,179,579,725.75/189,379.06
  6. Step 6: Final answer
    x = 106,556.55

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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.