Home / 154,540.42-231,200.70-117,205.90

Finding the Fourth Proportional to 154,540.42, 231,200.70 and 117,205.90

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Solution

The fourth proportional to 154,540.42, 231,200.70 and 117,205.90 is: 175,346.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,540.42 : 231,200.70 = 117,205.90 : x
  2. Step 2: Convert to fraction form
    154,540.42/231,200.70 = 117,205.90/x
  3. Step 3: Cross multiply
    154,540.42x = 231,200.70 × 117,205.90
  4. Step 4: Simplify right side
    154,540.42x = 27,098,086,124.13
  5. Step 5: Solve for x
    x = 27,098,086,124.13/154,540.42
  6. Step 6: Final answer
    x = 175,346.27

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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.