Home / 144,811.42-199,839.62-81,149.67

Finding the Fourth Proportional to 144,811.42, 199,839.62 and 81,149.67

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Solution

The fourth proportional to 144,811.42, 199,839.62 and 81,149.67 is: 111,986.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,811.42 : 199,839.62 = 81,149.67 : x
  2. Step 2: Convert to fraction form
    144,811.42/199,839.62 = 81,149.67/x
  3. Step 3: Cross multiply
    144,811.42x = 199,839.62 × 81,149.67
  4. Step 4: Simplify right side
    144,811.42x = 16,216,919,418.80
  5. Step 5: Solve for x
    x = 16,216,919,418.80/144,811.42
  6. Step 6: Final answer
    x = 111,986.47

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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.