Home / 103,621.70-155,317.35-44,447.30

Finding the Fourth Proportional to 103,621.70, 155,317.35 and 44,447.30

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Solution

The fourth proportional to 103,621.70, 155,317.35 and 44,447.30 is: 66,621.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,621.70 : 155,317.35 = 44,447.30 : x
  2. Step 2: Convert to fraction form
    103,621.70/155,317.35 = 44,447.30/x
  3. Step 3: Cross multiply
    103,621.70x = 155,317.35 × 44,447.30
  4. Step 4: Simplify right side
    103,621.70x = 6,903,436,850.66
  5. Step 5: Solve for x
    x = 6,903,436,850.66/103,621.70
  6. Step 6: Final answer
    x = 66,621.54

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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.