Home / 103,620.35-155,512.55-40,470.73

Finding the Fourth Proportional to 103,620.35, 155,512.55 and 40,470.73

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Solution

The fourth proportional to 103,620.35, 155,512.55 and 40,470.73 is: 60,738.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,620.35 : 155,512.55 = 40,470.73 : x
  2. Step 2: Convert to fraction form
    103,620.35/155,512.55 = 40,470.73/x
  3. Step 3: Cross multiply
    103,620.35x = 155,512.55 × 40,470.73
  4. Step 4: Simplify right side
    103,620.35x = 6,293,706,422.66
  5. Step 5: Solve for x
    x = 6,293,706,422.66/103,620.35
  6. Step 6: Final answer
    x = 60,738.13

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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.