Home / 129,463.12-194,195.96-40,714.64

Finding the Fourth Proportional to 129,463.12, 194,195.96 and 40,714.64

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Solution

The fourth proportional to 129,463.12, 194,195.96 and 40,714.64 is: 61,072.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,463.12 : 194,195.96 = 40,714.64 : x
  2. Step 2: Convert to fraction form
    129,463.12/194,195.96 = 40,714.64/x
  3. Step 3: Cross multiply
    129,463.12x = 194,195.96 × 40,714.64
  4. Step 4: Simplify right side
    129,463.12x = 7,906,618,600.85
  5. Step 5: Solve for x
    x = 7,906,618,600.85/129,463.12
  6. Step 6: Final answer
    x = 61,072.36

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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.