Home / 154,099.20-231,091.20-107,212.80

Finding the Fourth Proportional to 154,099.20, 231,091.20 and 107,212.80

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Solution

The fourth proportional to 154,099.20, 231,091.20 and 107,212.80 is: 160,779.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,099.20 : 231,091.20 = 107,212.80 : x
  2. Step 2: Convert to fraction form
    154,099.20/231,091.20 = 107,212.80/x
  3. Step 3: Cross multiply
    154,099.20x = 231,091.20 × 107,212.80
  4. Step 4: Simplify right side
    154,099.20x = 24,775,934,607.36
  5. Step 5: Solve for x
    x = 24,775,934,607.36/154,099.20
  6. Step 6: Final answer
    x = 160,779.13

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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.