Home / 129,928.80-194,875.89-41,191.28

Finding the Fourth Proportional to 129,928.80, 194,875.89 and 41,191.28

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Solution

The fourth proportional to 129,928.80, 194,875.89 and 41,191.28 is: 61,781.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,928.80 : 194,875.89 = 41,191.28 : x
  2. Step 2: Convert to fraction form
    129,928.80/194,875.89 = 41,191.28/x
  3. Step 3: Cross multiply
    129,928.80x = 194,875.89 × 41,191.28
  4. Step 4: Simplify right side
    129,928.80x = 8,027,186,169.90
  5. Step 5: Solve for x
    x = 8,027,186,169.90/129,928.80
  6. Step 6: Final answer
    x = 61,781.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.