Home / 103,241.48-154,861.84-68,172.80

Finding the Fourth Proportional to 103,241.48, 154,861.84 and 68,172.80

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Solution

The fourth proportional to 103,241.48, 154,861.84 and 68,172.80 is: 102,258.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,241.48 : 154,861.84 = 68,172.80 : x
  2. Step 2: Convert to fraction form
    103,241.48/154,861.84 = 68,172.80/x
  3. Step 3: Cross multiply
    103,241.48x = 154,861.84 × 68,172.80
  4. Step 4: Simplify right side
    103,241.48x = 10,557,365,245.95
  5. Step 5: Solve for x
    x = 10,557,365,245.95/103,241.48
  6. Step 6: Final answer
    x = 102,258.95

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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.