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Finding the Fourth Proportional to 154,586.80, 231,750.60 and 80,714.80

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Solution

The fourth proportional to 154,586.80, 231,750.60 and 80,714.80 is: 121,004.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,586.80 : 231,750.60 = 80,714.80 : x
  2. Step 2: Convert to fraction form
    154,586.80/231,750.60 = 80,714.80/x
  3. Step 3: Cross multiply
    154,586.80x = 231,750.60 × 80,714.80
  4. Step 4: Simplify right side
    154,586.80x = 18,705,703,328.88
  5. Step 5: Solve for x
    x = 18,705,703,328.88/154,586.80
  6. Step 6: Final answer
    x = 121,004.53

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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.