Home / 129,403.22-194,135.48-40,656.74

Finding the Fourth Proportional to 129,403.22, 194,135.48 and 40,656.74

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Solution

The fourth proportional to 129,403.22, 194,135.48 and 40,656.74 is: 60,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,403.22 : 194,135.48 = 40,656.74 : x
  2. Step 2: Convert to fraction form
    129,403.22/194,135.48 = 40,656.74/x
  3. Step 3: Cross multiply
    129,403.22x = 194,135.48 × 40,656.74
  4. Step 4: Simplify right side
    129,403.22x = 7,892,914,942.33
  5. Step 5: Solve for x
    x = 7,892,914,942.33/129,403.22
  6. Step 6: Final answer
    x = 60,994.73

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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.