Home / 154,850.20-231,983.70-79,714.60

Finding the Fourth Proportional to 154,850.20, 231,983.70 and 79,714.60

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Solution

The fourth proportional to 154,850.20, 231,983.70 and 79,714.60 is: 119,421.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,850.20 : 231,983.70 = 79,714.60 : x
  2. Step 2: Convert to fraction form
    154,850.20/231,983.70 = 79,714.60/x
  3. Step 3: Cross multiply
    154,850.20x = 231,983.70 × 79,714.60
  4. Step 4: Simplify right side
    154,850.20x = 18,492,487,852.02
  5. Step 5: Solve for x
    x = 18,492,487,852.02/154,850.20
  6. Step 6: Final answer
    x = 119,421.79

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1.5x scale

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.