Home / 136,450.20-204,675.30-86,586.60

Finding the Fourth Proportional to 136,450.20, 204,675.30 and 86,586.60

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Solution

The fourth proportional to 136,450.20, 204,675.30 and 86,586.60 is: 129,879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,450.20 : 204,675.30 = 86,586.60 : x
  2. Step 2: Convert to fraction form
    136,450.20/204,675.30 = 86,586.60/x
  3. Step 3: Cross multiply
    136,450.20x = 204,675.30 × 86,586.60
  4. Step 4: Simplify right side
    136,450.20x = 17,722,138,330.98
  5. Step 5: Solve for x
    x = 17,722,138,330.98/136,450.20
  6. Step 6: Final answer
    x = 129,879.90

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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.