Home / 211,231.75-291,499.83-115,741.87

Finding the Fourth Proportional to 211,231.75, 291,499.83 and 115,741.87

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Solution

The fourth proportional to 211,231.75, 291,499.83 and 115,741.87 is: 159,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,231.75 : 291,499.83 = 115,741.87 : x
  2. Step 2: Convert to fraction form
    211,231.75/291,499.83 = 115,741.87/x
  3. Step 3: Cross multiply
    211,231.75x = 291,499.83 × 115,741.87
  4. Step 4: Simplify right side
    211,231.75x = 33,738,735,428.88
  5. Step 5: Solve for x
    x = 33,738,735,428.88/211,231.75
  6. Step 6: Final answer
    x = 159,723.79

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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.