Home / 195,709.12-270,074.11-115,118.98

Finding the Fourth Proportional to 195,709.12, 270,074.11 and 115,118.98

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Solution

The fourth proportional to 195,709.12, 270,074.11 and 115,118.98 is: 158,861.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,709.12 : 270,074.11 = 115,118.98 : x
  2. Step 2: Convert to fraction form
    195,709.12/270,074.11 = 115,118.98/x
  3. Step 3: Cross multiply
    195,709.12x = 270,074.11 × 115,118.98
  4. Step 4: Simplify right side
    195,709.12x = 31,090,656,067.61
  5. Step 5: Solve for x
    x = 31,090,656,067.61/195,709.12
  6. Step 6: Final answer
    x = 158,861.56

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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.