Home / 325,139.72-487,756.14-100,519.70

Finding the Fourth Proportional to 325,139.72, 487,756.14 and 100,519.70

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Solution

The fourth proportional to 325,139.72, 487,756.14 and 100,519.70 is: 150,793.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,139.72 : 487,756.14 = 100,519.70 : x
  2. Step 2: Convert to fraction form
    325,139.72/487,756.14 = 100,519.70/x
  3. Step 3: Cross multiply
    325,139.72x = 487,756.14 × 100,519.70
  4. Step 4: Simplify right side
    325,139.72x = 49,029,100,865.96
  5. Step 5: Solve for x
    x = 49,029,100,865.96/325,139.72
  6. Step 6: Final answer
    x = 150,793.94

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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.