Home / 144,815.85-199,846.44-81,154.31

Finding the Fourth Proportional to 144,815.85, 199,846.44 and 81,154.31

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Solution

The fourth proportional to 144,815.85, 199,846.44 and 81,154.31 is: 111,993.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,815.85 : 199,846.44 = 81,154.31 : x
  2. Step 2: Convert to fraction form
    144,815.85/199,846.44 = 81,154.31/x
  3. Step 3: Cross multiply
    144,815.85x = 199,846.44 × 81,154.31
  4. Step 4: Simplify right side
    144,815.85x = 16,218,398,944.92
  5. Step 5: Solve for x
    x = 16,218,398,944.92/144,815.85
  6. Step 6: Final answer
    x = 111,993.26

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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.