Home / 144,469.12-199,318.85-83,990.37

Finding the Fourth Proportional to 144,469.12, 199,318.85 and 83,990.37

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Solution

The fourth proportional to 144,469.12, 199,318.85 and 83,990.37 is: 115,878.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,469.12 : 199,318.85 = 83,990.37 : x
  2. Step 2: Convert to fraction form
    144,469.12/199,318.85 = 83,990.37/x
  3. Step 3: Cross multiply
    144,469.12x = 199,318.85 × 83,990.37
  4. Step 4: Simplify right side
    144,469.12x = 16,740,863,716.99
  5. Step 5: Solve for x
    x = 16,740,863,716.99/144,469.12
  6. Step 6: Final answer
    x = 115,878.49

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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.