Home / 103,155.21-154,757.25-39,976.83

Finding the Fourth Proportional to 103,155.21, 154,757.25 and 39,976.83

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Solution

The fourth proportional to 103,155.21, 154,757.25 and 39,976.83 is: 59,974.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,155.21 : 154,757.25 = 39,976.83 : x
  2. Step 2: Convert to fraction form
    103,155.21/154,757.25 = 39,976.83/x
  3. Step 3: Cross multiply
    103,155.21x = 154,757.25 × 39,976.83
  4. Step 4: Simplify right side
    103,155.21x = 6,186,704,274.52
  5. Step 5: Solve for x
    x = 6,186,704,274.52/103,155.21
  6. Step 6: Final answer
    x = 59,974.71

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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.