Home / 128,770.44-193,147.20-44,511

Finding the Fourth Proportional to 128,770.44, 193,147.20 and 44,511

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Solution

The fourth proportional to 128,770.44, 193,147.20 and 44,511 is: 66,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,770.44 : 193,147.20 = 44,511 : x
  2. Step 2: Convert to fraction form
    128,770.44/193,147.20 = 44,511/x
  3. Step 3: Cross multiply
    128,770.44x = 193,147.20 × 44,511
  4. Step 4: Simplify right side
    128,770.44x = 8,597,175,019.20
  5. Step 5: Solve for x
    x = 8,597,175,019.20/128,770.44
  6. Step 6: Final answer
    x = 66,763.58

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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.