Home / 205,469.20-307,985.10-79,060.60

Finding the Fourth Proportional to 205,469.20, 307,985.10 and 79,060.60

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Solution

The fourth proportional to 205,469.20, 307,985.10 and 79,060.60 is: 118,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,469.20 : 307,985.10 = 79,060.60 : x
  2. Step 2: Convert to fraction form
    205,469.20/307,985.10 = 79,060.60/x
  3. Step 3: Cross multiply
    205,469.20x = 307,985.10 × 79,060.60
  4. Step 4: Simplify right side
    205,469.20x = 24,349,486,797.06
  5. Step 5: Solve for x
    x = 24,349,486,797.06/205,469.20
  6. Step 6: Final answer
    x = 118,506.75

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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.