Home / 129,548.43-194,329.60-40,808.88

Finding the Fourth Proportional to 129,548.43, 194,329.60 and 40,808.88

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Solution

The fourth proportional to 129,548.43, 194,329.60 and 40,808.88 is: 61,215.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,548.43 : 194,329.60 = 40,808.88 : x
  2. Step 2: Convert to fraction form
    129,548.43/194,329.60 = 40,808.88/x
  3. Step 3: Cross multiply
    129,548.43x = 194,329.60 × 40,808.88
  4. Step 4: Simplify right side
    129,548.43x = 7,930,373,224.83
  5. Step 5: Solve for x
    x = 7,930,373,224.83/129,548.43
  6. Step 6: Final answer
    x = 61,215.51

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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.