Home / 129,412.22-194,137.91-40,657.38

Finding the Fourth Proportional to 129,412.22, 194,137.91 and 40,657.38

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Solution

The fourth proportional to 129,412.22, 194,137.91 and 40,657.38 is: 60,992.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,412.22 : 194,137.91 = 40,657.38 : x
  2. Step 2: Convert to fraction form
    129,412.22/194,137.91 = 40,657.38/x
  3. Step 3: Cross multiply
    129,412.22x = 194,137.91 × 40,657.38
  4. Step 4: Simplify right side
    129,412.22x = 7,893,138,229.13
  5. Step 5: Solve for x
    x = 7,893,138,229.13/129,412.22
  6. Step 6: Final answer
    x = 60,992.22

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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.