Home / 141,939.40-195,899.78-85,381.96

Finding the Fourth Proportional to 141,939.40, 195,899.78 and 85,381.96

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Solution

The fourth proportional to 141,939.40, 195,899.78 and 85,381.96 is: 117,841.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,939.40 : 195,899.78 = 85,381.96 : x
  2. Step 2: Convert to fraction form
    141,939.40/195,899.78 = 85,381.96/x
  3. Step 3: Cross multiply
    141,939.40x = 195,899.78 × 85,381.96
  4. Step 4: Simplify right side
    141,939.40x = 16,726,307,179.97
  5. Step 5: Solve for x
    x = 16,726,307,179.97/141,939.40
  6. Step 6: Final answer
    x = 117,841.19

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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.