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Finding the Fourth Proportional to 154,508.69, 231,912.84 and 74,603.03

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Solution

The fourth proportional to 154,508.69, 231,912.84 and 74,603.03 is: 111,976.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,508.69 : 231,912.84 = 74,603.03 : x
  2. Step 2: Convert to fraction form
    154,508.69/231,912.84 = 74,603.03/x
  3. Step 3: Cross multiply
    154,508.69x = 231,912.84 × 74,603.03
  4. Step 4: Simplify right side
    154,508.69x = 17,301,400,559.91
  5. Step 5: Solve for x
    x = 17,301,400,559.91/154,508.69
  6. Step 6: Final answer
    x = 111,976.88

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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.