Home / 319,919.43-479,510.04-120,112.38

Finding the Fourth Proportional to 319,919.43, 479,510.04 and 120,112.38

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Solution

The fourth proportional to 319,919.43, 479,510.04 and 120,112.38 is: 180,029.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,919.43 : 479,510.04 = 120,112.38 : x
  2. Step 2: Convert to fraction form
    319,919.43/479,510.04 = 120,112.38/x
  3. Step 3: Cross multiply
    319,919.43x = 479,510.04 × 120,112.38
  4. Step 4: Simplify right side
    319,919.43x = 57,595,092,138.30
  5. Step 5: Solve for x
    x = 57,595,092,138.30/319,919.43
  6. Step 6: Final answer
    x = 180,029.99

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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.