Home / 103,634.90-155,452.41-28,755.11

Finding the Fourth Proportional to 103,634.90, 155,452.41 and 28,755.11

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Solution

The fourth proportional to 103,634.90, 155,452.41 and 28,755.11 is: 43,132.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,634.90 : 155,452.41 = 28,755.11 : x
  2. Step 2: Convert to fraction form
    103,634.90/155,452.41 = 28,755.11/x
  3. Step 3: Cross multiply
    103,634.90x = 155,452.41 × 28,755.11
  4. Step 4: Simplify right side
    103,634.90x = 4,470,050,372.05
  5. Step 5: Solve for x
    x = 4,470,050,372.05/103,634.90
  6. Step 6: Final answer
    x = 43,132.68

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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.