Home / 103,632.03-155,448.03-28,752.18

Finding the Fourth Proportional to 103,632.03, 155,448.03 and 28,752.18

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Solution

The fourth proportional to 103,632.03, 155,448.03 and 28,752.18 is: 43,128.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,632.03 : 155,448.03 = 28,752.18 : x
  2. Step 2: Convert to fraction form
    103,632.03/155,448.03 = 28,752.18/x
  3. Step 3: Cross multiply
    103,632.03x = 155,448.03 × 28,752.18
  4. Step 4: Simplify right side
    103,632.03x = 4,469,469,739.21
  5. Step 5: Solve for x
    x = 4,469,469,739.21/103,632.03
  6. Step 6: Final answer
    x = 43,128.27

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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.