Home / 103,426.06-155,148.03-28,546.21

Finding the Fourth Proportional to 103,426.06, 155,148.03 and 28,546.21

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Solution

The fourth proportional to 103,426.06, 155,148.03 and 28,546.21 is: 42,821.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,426.06 : 155,148.03 = 28,546.21 : x
  2. Step 2: Convert to fraction form
    103,426.06/155,148.03 = 28,546.21/x
  3. Step 3: Cross multiply
    103,426.06x = 155,148.03 × 28,546.21
  4. Step 4: Simplify right side
    103,426.06x = 4,428,888,245.47
  5. Step 5: Solve for x
    x = 4,428,888,245.47/103,426.06
  6. Step 6: Final answer
    x = 42,821.78

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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.