Home / 129,645.84-194,468.76-40,908.27

Finding the Fourth Proportional to 129,645.84, 194,468.76 and 40,908.27

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Solution

The fourth proportional to 129,645.84, 194,468.76 and 40,908.27 is: 61,362.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,645.84 : 194,468.76 = 40,908.27 : x
  2. Step 2: Convert to fraction form
    129,645.84/194,468.76 = 40,908.27/x
  3. Step 3: Cross multiply
    129,645.84x = 194,468.76 × 40,908.27
  4. Step 4: Simplify right side
    129,645.84x = 7,955,380,540.65
  5. Step 5: Solve for x
    x = 7,955,380,540.65/129,645.84
  6. Step 6: Final answer
    x = 61,362.41

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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.