Home / 141,628.05-212,310.86-71,425.89

Finding the Fourth Proportional to 141,628.05, 212,310.86 and 71,425.89

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Solution

The fourth proportional to 141,628.05, 212,310.86 and 71,425.89 is: 107,072.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,628.05 : 212,310.86 = 71,425.89 : x
  2. Step 2: Convert to fraction form
    141,628.05/212,310.86 = 71,425.89/x
  3. Step 3: Cross multiply
    141,628.05x = 212,310.86 × 71,425.89
  4. Step 4: Simplify right side
    141,628.05x = 15,164,491,775.04
  5. Step 5: Solve for x
    x = 15,164,491,775.04/141,628.05
  6. Step 6: Final answer
    x = 107,072.66

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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.