Home / 144,470.12-199,320.23-83,991.37

Finding the Fourth Proportional to 144,470.12, 199,320.23 and 83,991.37

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Solution

The fourth proportional to 144,470.12, 199,320.23 and 83,991.37 is: 115,879.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,470.12 : 199,320.23 = 83,991.37 : x
  2. Step 2: Convert to fraction form
    144,470.12/199,320.23 = 83,991.37/x
  3. Step 3: Cross multiply
    144,470.12x = 199,320.23 × 83,991.37
  4. Step 4: Simplify right side
    144,470.12x = 16,741,179,186.42
  5. Step 5: Solve for x
    x = 16,741,179,186.42/144,470.12
  6. Step 6: Final answer
    x = 115,879.87

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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.