Home / 103,618.18-155,427.19-28,757.17

Finding the Fourth Proportional to 103,618.18, 155,427.19 and 28,757.17

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Solution

The fourth proportional to 103,618.18, 155,427.19 and 28,757.17 is: 43,135.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,618.18 : 155,427.19 = 28,757.17 : x
  2. Step 2: Convert to fraction form
    103,618.18/155,427.19 = 28,757.17/x
  3. Step 3: Cross multiply
    103,618.18x = 155,427.19 × 28,757.17
  4. Step 4: Simplify right side
    103,618.18x = 4,469,646,125.45
  5. Step 5: Solve for x
    x = 4,469,646,125.45/103,618.18
  6. Step 6: Final answer
    x = 43,135.73

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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.