Home / 141,540.63-195,331.44-81,122.94

Finding the Fourth Proportional to 141,540.63, 195,331.44 and 81,122.94

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Solution

The fourth proportional to 141,540.63, 195,331.44 and 81,122.94 is: 111,952.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,540.63 : 195,331.44 = 81,122.94 : x
  2. Step 2: Convert to fraction form
    141,540.63/195,331.44 = 81,122.94/x
  3. Step 3: Cross multiply
    141,540.63x = 195,331.44 × 81,122.94
  4. Step 4: Simplify right side
    141,540.63x = 15,845,860,687.23
  5. Step 5: Solve for x
    x = 15,845,860,687.23/141,540.63
  6. Step 6: Final answer
    x = 111,952.74

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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.