Home / 129,450.48-194,184.09-40,707.42

Finding the Fourth Proportional to 129,450.48, 194,184.09 and 40,707.42

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Solution

The fourth proportional to 129,450.48, 194,184.09 and 40,707.42 is: 61,063.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,450.48 : 194,184.09 = 40,707.42 : x
  2. Step 2: Convert to fraction form
    129,450.48/194,184.09 = 40,707.42/x
  3. Step 3: Cross multiply
    129,450.48x = 194,184.09 × 40,707.42
  4. Step 4: Simplify right side
    129,450.48x = 7,904,733,308.95
  5. Step 5: Solve for x
    x = 7,904,733,308.95/129,450.48
  6. Step 6: Final answer
    x = 61,063.76

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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.