Home / 155,020.96-213,993.84-131,270.56

Finding the Fourth Proportional to 155,020.96, 213,993.84 and 131,270.56

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Solution

The fourth proportional to 155,020.96, 213,993.84 and 131,270.56 is: 181,208.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,020.96 : 213,993.84 = 131,270.56 : x
  2. Step 2: Convert to fraction form
    155,020.96/213,993.84 = 131,270.56/x
  3. Step 3: Cross multiply
    155,020.96x = 213,993.84 × 131,270.56
  4. Step 4: Simplify right side
    155,020.96x = 28,091,091,213.35
  5. Step 5: Solve for x
    x = 28,091,091,213.35/155,020.96
  6. Step 6: Final answer
    x = 181,208.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.