Home / 154,490.80-231,736.20-112,172.35

Finding the Fourth Proportional to 154,490.80, 231,736.20 and 112,172.35

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Solution

The fourth proportional to 154,490.80, 231,736.20 and 112,172.35 is: 168,258.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,490.80 : 231,736.20 = 112,172.35 : x
  2. Step 2: Convert to fraction form
    154,490.80/231,736.20 = 112,172.35/x
  3. Step 3: Cross multiply
    154,490.80x = 231,736.20 × 112,172.35
  4. Step 4: Simplify right side
    154,490.80x = 25,994,394,134.07
  5. Step 5: Solve for x
    x = 25,994,394,134.07/154,490.80
  6. Step 6: Final answer
    x = 168,258.53

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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.