Home / 136,610.20-204,915.30-84,122.20

Finding the Fourth Proportional to 136,610.20, 204,915.30 and 84,122.20

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Solution

The fourth proportional to 136,610.20, 204,915.30 and 84,122.20 is: 126,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,610.20 : 204,915.30 = 84,122.20 : x
  2. Step 2: Convert to fraction form
    136,610.20/204,915.30 = 84,122.20/x
  3. Step 3: Cross multiply
    136,610.20x = 204,915.30 × 84,122.20
  4. Step 4: Simplify right side
    136,610.20x = 17,237,925,849.66
  5. Step 5: Solve for x
    x = 17,237,925,849.66/136,610.20
  6. Step 6: Final answer
    x = 126,183.30

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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.