Home / 129,326.07-194,021.92-40,580.34

Finding the Fourth Proportional to 129,326.07, 194,021.92 and 40,580.34

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Solution

The fourth proportional to 129,326.07, 194,021.92 and 40,580.34 is: 60,880.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,326.07 : 194,021.92 = 40,580.34 : x
  2. Step 2: Convert to fraction form
    129,326.07/194,021.92 = 40,580.34/x
  3. Step 3: Cross multiply
    129,326.07x = 194,021.92 × 40,580.34
  4. Step 4: Simplify right side
    129,326.07x = 7,873,475,667.30
  5. Step 5: Solve for x
    x = 7,873,475,667.30/129,326.07
  6. Step 6: Final answer
    x = 60,880.81

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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.