Home / 144,291.11-199,117.91-80,629.43

Finding the Fourth Proportional to 144,291.11, 199,117.91 and 80,629.43

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Solution

The fourth proportional to 144,291.11, 199,117.91 and 80,629.43 is: 111,266.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,291.11 : 199,117.91 = 80,629.43 : x
  2. Step 2: Convert to fraction form
    144,291.11/199,117.91 = 80,629.43/x
  3. Step 3: Cross multiply
    144,291.11x = 199,117.91 × 80,629.43
  4. Step 4: Simplify right side
    144,291.11x = 16,054,763,586.09
  5. Step 5: Solve for x
    x = 16,054,763,586.09/144,291.11
  6. Step 6: Final answer
    x = 111,266.48

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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.