Home / 144,986.81-200,081.39-80,465.79

Finding the Fourth Proportional to 144,986.81, 200,081.39 and 80,465.79

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Solution

The fourth proportional to 144,986.81, 200,081.39 and 80,465.79 is: 111,042.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,986.81 : 200,081.39 = 80,465.79 : x
  2. Step 2: Convert to fraction form
    144,986.81/200,081.39 = 80,465.79/x
  3. Step 3: Cross multiply
    144,986.81x = 200,081.39 × 80,465.79
  4. Step 4: Simplify right side
    144,986.81x = 16,099,706,785.79
  5. Step 5: Solve for x
    x = 16,099,706,785.79/144,986.81
  6. Step 6: Final answer
    x = 111,042.56

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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.