Home / 129,379.23-194,067.23-45,139.23

Finding the Fourth Proportional to 129,379.23, 194,067.23 and 45,139.23

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Solution

The fourth proportional to 129,379.23, 194,067.23 and 45,139.23 is: 67,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,379.23 : 194,067.23 = 45,139.23 : x
  2. Step 2: Convert to fraction form
    129,379.23/194,067.23 = 45,139.23/x
  3. Step 3: Cross multiply
    129,379.23x = 194,067.23 × 45,139.23
  4. Step 4: Simplify right side
    129,379.23x = 8,760,045,104.74
  5. Step 5: Solve for x
    x = 8,760,045,104.74/129,379.23
  6. Step 6: Final answer
    x = 67,708.28

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1.5x scale

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.