Home / 319,620.14-479,377.88-130,072.85

Finding the Fourth Proportional to 319,620.14, 479,377.88 and 130,072.85

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Solution

The fourth proportional to 319,620.14, 479,377.88 and 130,072.85 is: 195,087.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,620.14 : 479,377.88 = 130,072.85 : x
  2. Step 2: Convert to fraction form
    319,620.14/479,377.88 = 130,072.85/x
  3. Step 3: Cross multiply
    319,620.14x = 479,377.88 × 130,072.85
  4. Step 4: Simplify right side
    319,620.14x = 62,354,044,031.30
  5. Step 5: Solve for x
    x = 62,354,044,031.30/319,620.14
  6. Step 6: Final answer
    x = 195,087.97

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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.