Home / 154,051.20-231,076.80-100,907.10

Finding the Fourth Proportional to 154,051.20, 231,076.80 and 100,907.10

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Solution

The fourth proportional to 154,051.20, 231,076.80 and 100,907.10 is: 151,360.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,051.20 : 231,076.80 = 100,907.10 : x
  2. Step 2: Convert to fraction form
    154,051.20/231,076.80 = 100,907.10/x
  3. Step 3: Cross multiply
    154,051.20x = 231,076.80 × 100,907.10
  4. Step 4: Simplify right side
    154,051.20x = 23,317,289,765.28
  5. Step 5: Solve for x
    x = 23,317,289,765.28/154,051.20
  6. Step 6: Final answer
    x = 151,360.65

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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.