Home / 154,489.80-231,734.70-112,171.35

Finding the Fourth Proportional to 154,489.80, 231,734.70 and 112,171.35

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Solution

The fourth proportional to 154,489.80, 231,734.70 and 112,171.35 is: 168,257.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,489.80 : 231,734.70 = 112,171.35 : x
  2. Step 2: Convert to fraction form
    154,489.80/231,734.70 = 112,171.35/x
  3. Step 3: Cross multiply
    154,489.80x = 231,734.70 × 112,171.35
  4. Step 4: Simplify right side
    154,489.80x = 25,993,994,140.85
  5. Step 5: Solve for x
    x = 25,993,994,140.85/154,489.80
  6. Step 6: Final answer
    x = 168,257.03

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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.