Home / 154,103.98-231,276.48-79,221.10

Finding the Fourth Proportional to 154,103.98, 231,276.48 and 79,221.10

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Solution

The fourth proportional to 154,103.98, 231,276.48 and 79,221.10 is: 118,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,103.98 : 231,276.48 = 79,221.10 : x
  2. Step 2: Convert to fraction form
    154,103.98/231,276.48 = 79,221.10/x
  3. Step 3: Cross multiply
    154,103.98x = 231,276.48 × 79,221.10
  4. Step 4: Simplify right side
    154,103.98x = 18,321,977,149.73
  5. Step 5: Solve for x
    x = 18,321,977,149.73/154,103.98
  6. Step 6: Final answer
    x = 118,893.60

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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.