Home / 129,476.21-194,131.28-89,382.86

Finding the Fourth Proportional to 129,476.21, 194,131.28 and 89,382.86

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Solution

The fourth proportional to 129,476.21, 194,131.28 and 89,382.86 is: 134,016.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,476.21 : 194,131.28 = 89,382.86 : x
  2. Step 2: Convert to fraction form
    129,476.21/194,131.28 = 89,382.86/x
  3. Step 3: Cross multiply
    129,476.21x = 194,131.28 × 89,382.86
  4. Step 4: Simplify right side
    129,476.21x = 17,352,008,846.52
  5. Step 5: Solve for x
    x = 17,352,008,846.52/129,476.21
  6. Step 6: Final answer
    x = 134,016.97

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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.