Home / 103,627.06-155,440.57-28,747.20

Finding the Fourth Proportional to 103,627.06, 155,440.57 and 28,747.20

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Solution

The fourth proportional to 103,627.06, 155,440.57 and 28,747.20 is: 43,120.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,627.06 : 155,440.57 = 28,747.20 : x
  2. Step 2: Convert to fraction form
    103,627.06/155,440.57 = 28,747.20/x
  3. Step 3: Cross multiply
    103,627.06x = 155,440.57 × 28,747.20
  4. Step 4: Simplify right side
    103,627.06x = 4,468,481,153.90
  5. Step 5: Solve for x
    x = 4,468,481,153.90/103,627.06
  6. Step 6: Final answer
    x = 43,120.79

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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.