Home / 129,853.10-194,759.40-41,128.40

Finding the Fourth Proportional to 129,853.10, 194,759.40 and 41,128.40

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Solution

The fourth proportional to 129,853.10, 194,759.40 and 41,128.40 is: 61,686.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,853.10 : 194,759.40 = 41,128.40 : x
  2. Step 2: Convert to fraction form
    129,853.10/194,759.40 = 41,128.40/x
  3. Step 3: Cross multiply
    129,853.10x = 194,759.40 × 41,128.40
  4. Step 4: Simplify right side
    129,853.10x = 8,010,142,506.96
  5. Step 5: Solve for x
    x = 8,010,142,506.96/129,853.10
  6. Step 6: Final answer
    x = 61,686.19

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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.