Home / 103,661.20-155,376.60-44,486.80

Finding the Fourth Proportional to 103,661.20, 155,376.60 and 44,486.80

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Solution

The fourth proportional to 103,661.20, 155,376.60 and 44,486.80 is: 66,680.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,661.20 : 155,376.60 = 44,486.80 : x
  2. Step 2: Convert to fraction form
    103,661.20/155,376.60 = 44,486.80/x
  3. Step 3: Cross multiply
    103,661.20x = 155,376.60 × 44,486.80
  4. Step 4: Simplify right side
    103,661.20x = 6,912,207,728.88
  5. Step 5: Solve for x
    x = 6,912,207,728.88/103,661.20
  6. Step 6: Final answer
    x = 66,680.76

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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.