Home / 141,128.73-211,711.86-74,571.57

Finding the Fourth Proportional to 141,128.73, 211,711.86 and 74,571.57

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Solution

The fourth proportional to 141,128.73, 211,711.86 and 74,571.57 is: 111,867.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,128.73 : 211,711.86 = 74,571.57 : x
  2. Step 2: Convert to fraction form
    141,128.73/211,711.86 = 74,571.57/x
  3. Step 3: Cross multiply
    141,128.73x = 211,711.86 × 74,571.57
  4. Step 4: Simplify right side
    141,128.73x = 15,787,685,787.82
  5. Step 5: Solve for x
    x = 15,787,685,787.82/141,128.73
  6. Step 6: Final answer
    x = 111,867.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.