Home / 141,721.73-195,575.97-78,059.52

Finding the Fourth Proportional to 141,721.73, 195,575.97 and 78,059.52

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Solution

The fourth proportional to 141,721.73, 195,575.97 and 78,059.52 is: 107,722.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,721.73 : 195,575.97 = 78,059.52 : x
  2. Step 2: Convert to fraction form
    141,721.73/195,575.97 = 78,059.52/x
  3. Step 3: Cross multiply
    141,721.73x = 195,575.97 × 78,059.52
  4. Step 4: Simplify right side
    141,721.73x = 15,266,567,074.74
  5. Step 5: Solve for x
    x = 15,266,567,074.74/141,721.73
  6. Step 6: Final answer
    x = 107,722.14

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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.