Home / 103,169.89-154,757.67-28,291.06

Finding the Fourth Proportional to 103,169.89, 154,757.67 and 28,291.06

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Solution

The fourth proportional to 103,169.89, 154,757.67 and 28,291.06 is: 42,437.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,169.89 : 154,757.67 = 28,291.06 : x
  2. Step 2: Convert to fraction form
    103,169.89/154,757.67 = 28,291.06/x
  3. Step 3: Cross multiply
    103,169.89x = 154,757.67 × 28,291.06
  4. Step 4: Simplify right side
    103,169.89x = 4,378,258,527.43
  5. Step 5: Solve for x
    x = 4,378,258,527.43/103,169.89
  6. Step 6: Final answer
    x = 42,437.37

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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.