Home / 129,425.26-194,128.53-40,704.15

Finding the Fourth Proportional to 129,425.26, 194,128.53 and 40,704.15

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Solution

The fourth proportional to 129,425.26, 194,128.53 and 40,704.15 is: 61,053.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,425.26 : 194,128.53 = 40,704.15 : x
  2. Step 2: Convert to fraction form
    129,425.26/194,128.53 = 40,704.15/x
  3. Step 3: Cross multiply
    129,425.26x = 194,128.53 × 40,704.15
  4. Step 4: Simplify right side
    129,425.26x = 7,901,836,804.40
  5. Step 5: Solve for x
    x = 7,901,836,804.40/129,425.26
  6. Step 6: Final answer
    x = 61,053.28

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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.