Home / 141,795.88-195,682.43-78,137.78

Finding the Fourth Proportional to 141,795.88, 195,682.43 and 78,137.78

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Solution

The fourth proportional to 141,795.88, 195,682.43 and 78,137.78 is: 107,832.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,795.88 : 195,682.43 = 78,137.78 : x
  2. Step 2: Convert to fraction form
    141,795.88/195,682.43 = 78,137.78/x
  3. Step 3: Cross multiply
    141,795.88x = 195,682.43 × 78,137.78
  4. Step 4: Simplify right side
    141,795.88x = 15,290,190,274.52
  5. Step 5: Solve for x
    x = 15,290,190,274.52/141,795.88
  6. Step 6: Final answer
    x = 107,832.41

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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.