Home / 154,954.80-231,845.52-91,808.76

Finding the Fourth Proportional to 154,954.80, 231,845.52 and 91,808.76

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Solution

The fourth proportional to 154,954.80, 231,845.52 and 91,808.76 is: 137,365.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,954.80 : 231,845.52 = 91,808.76 : x
  2. Step 2: Convert to fraction form
    154,954.80/231,845.52 = 91,808.76/x
  3. Step 3: Cross multiply
    154,954.80x = 231,845.52 × 91,808.76
  4. Step 4: Simplify right side
    154,954.80x = 21,285,449,702.76
  5. Step 5: Solve for x
    x = 21,285,449,702.76/154,954.80
  6. Step 6: Final answer
    x = 137,365.54

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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.