Home / 103,618.19-155,427.18-28,757.18

Finding the Fourth Proportional to 103,618.19, 155,427.18 and 28,757.18

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Solution

The fourth proportional to 103,618.19, 155,427.18 and 28,757.18 is: 43,135.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.19 : 155,427.18 = 28,757.18 : x
  2. Step 2: Convert to fraction form
    103,618.19/155,427.18 = 28,757.18/x
  3. Step 3: Cross multiply
    103,618.19x = 155,427.18 × 28,757.18
  4. Step 4: Simplify right side
    103,618.19x = 4,469,647,392.15
  5. Step 5: Solve for x
    x = 4,469,647,392.15/103,618.19
  6. Step 6: Final answer
    x = 43,135.74

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1.5x scale

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.