Home / 144,884.87-199,941-81,222.67

Finding the Fourth Proportional to 144,884.87, 199,941 and 81,222.67

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Solution

The fourth proportional to 144,884.87, 199,941 and 81,222.67 is: 112,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,884.87 : 199,941 = 81,222.67 : x
  2. Step 2: Convert to fraction form
    144,884.87/199,941 = 81,222.67/x
  3. Step 3: Cross multiply
    144,884.87x = 199,941 × 81,222.67
  4. Step 4: Simplify right side
    144,884.87x = 16,239,741,862.47
  5. Step 5: Solve for x
    x = 16,239,741,862.47/144,884.87
  6. Step 6: Final answer
    x = 112,087.22

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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.