Home / 144,742.55-199,745.19-80,214.71

Finding the Fourth Proportional to 144,742.55, 199,745.19 and 80,214.71

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Solution

The fourth proportional to 144,742.55, 199,745.19 and 80,214.71 is: 110,696.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,742.55 : 199,745.19 = 80,214.71 : x
  2. Step 2: Convert to fraction form
    144,742.55/199,745.19 = 80,214.71/x
  3. Step 3: Cross multiply
    144,742.55x = 199,745.19 × 80,214.71
  4. Step 4: Simplify right side
    144,742.55x = 16,022,501,491.02
  5. Step 5: Solve for x
    x = 16,022,501,491.02/144,742.55
  6. Step 6: Final answer
    x = 110,696.56

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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.