Home / 144,811.44-199,839.60-81,149.67

Finding the Fourth Proportional to 144,811.44, 199,839.60 and 81,149.67

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Solution

The fourth proportional to 144,811.44, 199,839.60 and 81,149.67 is: 111,986.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,811.44 : 199,839.60 = 81,149.67 : x
  2. Step 2: Convert to fraction form
    144,811.44/199,839.60 = 81,149.67/x
  3. Step 3: Cross multiply
    144,811.44x = 199,839.60 × 81,149.67
  4. Step 4: Simplify right side
    144,811.44x = 16,216,917,592.93
  5. Step 5: Solve for x
    x = 16,216,917,592.93/144,811.44
  6. Step 6: Final answer
    x = 111,986.44

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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.