Home / 111,975.23-167,961.80-45,399.54

Finding the Fourth Proportional to 111,975.23, 167,961.80 and 45,399.54

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Solution

The fourth proportional to 111,975.23, 167,961.80 and 45,399.54 is: 68,098.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,975.23 : 167,961.80 = 45,399.54 : x
  2. Step 2: Convert to fraction form
    111,975.23/167,961.80 = 45,399.54/x
  3. Step 3: Cross multiply
    111,975.23x = 167,961.80 × 45,399.54
  4. Step 4: Simplify right side
    111,975.23x = 7,625,388,457.57
  5. Step 5: Solve for x
    x = 7,625,388,457.57/111,975.23
  6. Step 6: Final answer
    x = 68,098.89

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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.