Home / 114,540.20-171,939.90-67,819.40

Finding the Fourth Proportional to 114,540.20, 171,939.90 and 67,819.40

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Solution

The fourth proportional to 114,540.20, 171,939.90 and 67,819.40 is: 101,805.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,540.20 : 171,939.90 = 67,819.40 : x
  2. Step 2: Convert to fraction form
    114,540.20/171,939.90 = 67,819.40/x
  3. Step 3: Cross multiply
    114,540.20x = 171,939.90 × 67,819.40
  4. Step 4: Simplify right side
    114,540.20x = 11,660,860,854.06
  5. Step 5: Solve for x
    x = 11,660,860,854.06/114,540.20
  6. Step 6: Final answer
    x = 101,805.84

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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.