Home / 103,548.85-155,224.82-66,003.53

Finding the Fourth Proportional to 103,548.85, 155,224.82 and 66,003.53

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Solution

The fourth proportional to 103,548.85, 155,224.82 and 66,003.53 is: 98,942.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,548.85 : 155,224.82 = 66,003.53 : x
  2. Step 2: Convert to fraction form
    103,548.85/155,224.82 = 66,003.53/x
  3. Step 3: Cross multiply
    103,548.85x = 155,224.82 × 66,003.53
  4. Step 4: Simplify right side
    103,548.85x = 10,245,385,452.50
  5. Step 5: Solve for x
    x = 10,245,385,452.50/103,548.85
  6. Step 6: Final answer
    x = 98,942.53

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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.