Home / 129,720.43-194,496.80-50,842.63

Finding the Fourth Proportional to 129,720.43, 194,496.80 and 50,842.63

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Solution

The fourth proportional to 129,720.43, 194,496.80 and 50,842.63 is: 76,231.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,720.43 : 194,496.80 = 50,842.63 : x
  2. Step 2: Convert to fraction form
    129,720.43/194,496.80 = 50,842.63/x
  3. Step 3: Cross multiply
    129,720.43x = 194,496.80 × 50,842.63
  4. Step 4: Simplify right side
    129,720.43x = 9,888,728,827.49
  5. Step 5: Solve for x
    x = 9,888,728,827.49/129,720.43
  6. Step 6: Final answer
    x = 76,231.08

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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.