Home / 144,742.57-199,744.79-81,081.73

Finding the Fourth Proportional to 144,742.57, 199,744.79 and 81,081.73

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Solution

The fourth proportional to 144,742.57, 199,744.79 and 81,081.73 is: 111,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,742.57 : 199,744.79 = 81,081.73 : x
  2. Step 2: Convert to fraction form
    144,742.57/199,744.79 = 81,081.73/x
  3. Step 3: Cross multiply
    144,742.57x = 199,744.79 × 81,081.73
  4. Step 4: Simplify right side
    144,742.57x = 16,195,653,537.74
  5. Step 5: Solve for x
    x = 16,195,653,537.74/144,742.57
  6. Step 6: Final answer
    x = 111,892.81

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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.