Home / 103,217.40-154,826.58-28,338.60

Finding the Fourth Proportional to 103,217.40, 154,826.58 and 28,338.60

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Solution

The fourth proportional to 103,217.40, 154,826.58 and 28,338.60 is: 42,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,217.40 : 154,826.58 = 28,338.60 : x
  2. Step 2: Convert to fraction form
    103,217.40/154,826.58 = 28,338.60/x
  3. Step 3: Cross multiply
    103,217.40x = 154,826.58 × 28,338.60
  4. Step 4: Simplify right side
    103,217.40x = 4,387,568,519.99
  5. Step 5: Solve for x
    x = 4,387,568,519.99/103,217.40
  6. Step 6: Final answer
    x = 42,508.03

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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.