Home / 111,148.40-166,716.66-31,191.80

Finding the Fourth Proportional to 111,148.40, 166,716.66 and 31,191.80

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Solution

The fourth proportional to 111,148.40, 166,716.66 and 31,191.80 is: 46,786.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,148.40 : 166,716.66 = 31,191.80 : x
  2. Step 2: Convert to fraction form
    111,148.40/166,716.66 = 31,191.80/x
  3. Step 3: Cross multiply
    111,148.40x = 166,716.66 × 31,191.80
  4. Step 4: Simplify right side
    111,148.40x = 5,200,192,715.39
  5. Step 5: Solve for x
    x = 5,200,192,715.39/111,148.40
  6. Step 6: Final answer
    x = 46,786.03

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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.