Home / 141,540.89-195,331.80-81,123.19

Finding the Fourth Proportional to 141,540.89, 195,331.80 and 81,123.19

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Solution

The fourth proportional to 141,540.89, 195,331.80 and 81,123.19 is: 111,953.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,540.89 : 195,331.80 = 81,123.19 : x
  2. Step 2: Convert to fraction form
    141,540.89/195,331.80 = 81,123.19/x
  3. Step 3: Cross multiply
    141,540.89x = 195,331.80 × 81,123.19
  4. Step 4: Simplify right side
    141,540.89x = 15,845,938,724.44
  5. Step 5: Solve for x
    x = 15,845,938,724.44/141,540.89
  6. Step 6: Final answer
    x = 111,953.08

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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.