Home / 144,805.37-199,831.66-81,143.17

Finding the Fourth Proportional to 144,805.37, 199,831.66 and 81,143.17

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Solution

The fourth proportional to 144,805.37, 199,831.66 and 81,143.17 is: 111,977.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,805.37 : 199,831.66 = 81,143.17 : x
  2. Step 2: Convert to fraction form
    144,805.37/199,831.66 = 81,143.17/x
  3. Step 3: Cross multiply
    144,805.37x = 199,831.66 × 81,143.17
  4. Step 4: Simplify right side
    144,805.37x = 16,214,973,656.33
  5. Step 5: Solve for x
    x = 16,214,973,656.33/144,805.37
  6. Step 6: Final answer
    x = 111,977.71

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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.