Home / 129,620.20-194,276.70-54,740.20

Finding the Fourth Proportional to 129,620.20, 194,276.70 and 54,740.20

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Solution

The fourth proportional to 129,620.20, 194,276.70 and 54,740.20 is: 82,045.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,620.20 : 194,276.70 = 54,740.20 : x
  2. Step 2: Convert to fraction form
    129,620.20/194,276.70 = 54,740.20/x
  3. Step 3: Cross multiply
    129,620.20x = 194,276.70 × 54,740.20
  4. Step 4: Simplify right side
    129,620.20x = 10,634,745,413.34
  5. Step 5: Solve for x
    x = 10,634,745,413.34/129,620.20
  6. Step 6: Final answer
    x = 82,045.43

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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.