Home / 129,480.06-194,220.66-45,239.82

Finding the Fourth Proportional to 129,480.06, 194,220.66 and 45,239.82

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Solution

The fourth proportional to 129,480.06, 194,220.66 and 45,239.82 is: 67,859.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,480.06 : 194,220.66 = 45,239.82 : x
  2. Step 2: Convert to fraction form
    129,480.06/194,220.66 = 45,239.82/x
  3. Step 3: Cross multiply
    129,480.06x = 194,220.66 × 45,239.82
  4. Step 4: Simplify right side
    129,480.06x = 8,786,507,698.68
  5. Step 5: Solve for x
    x = 8,786,507,698.68/129,480.06
  6. Step 6: Final answer
    x = 67,859.93

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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.