Home / 129,733.07-194,249.05-67,272.35

Finding the Fourth Proportional to 129,733.07, 194,249.05 and 67,272.35

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Solution

The fourth proportional to 129,733.07, 194,249.05 and 67,272.35 is: 100,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,733.07 : 194,249.05 = 67,272.35 : x
  2. Step 2: Convert to fraction form
    129,733.07/194,249.05 = 67,272.35/x
  3. Step 3: Cross multiply
    129,733.07x = 194,249.05 × 67,272.35
  4. Step 4: Simplify right side
    129,733.07x = 13,067,588,939.34
  5. Step 5: Solve for x
    x = 13,067,588,939.34/129,733.07
  6. Step 6: Final answer
    x = 100,726.74

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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.