Home / 103,632.56-155,448.82-28,752.70

Finding the Fourth Proportional to 103,632.56, 155,448.82 and 28,752.70

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Solution

The fourth proportional to 103,632.56, 155,448.82 and 28,752.70 is: 43,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,632.56 : 155,448.82 = 28,752.70 : x
  2. Step 2: Convert to fraction form
    103,632.56/155,448.82 = 28,752.70/x
  3. Step 3: Cross multiply
    103,632.56x = 155,448.82 × 28,752.70
  4. Step 4: Simplify right side
    103,632.56x = 4,469,573,286.81
  5. Step 5: Solve for x
    x = 4,469,573,286.81/103,632.56
  6. Step 6: Final answer
    x = 43,129.04

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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.