Home / 129,706.67-179,003.43-73,121.69

Finding the Fourth Proportional to 129,706.67, 179,003.43 and 73,121.69

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Solution

The fourth proportional to 129,706.67, 179,003.43 and 73,121.69 is: 100,912.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,706.67 : 179,003.43 = 73,121.69 : x
  2. Step 2: Convert to fraction form
    129,706.67/179,003.43 = 73,121.69/x
  3. Step 3: Cross multiply
    129,706.67x = 179,003.43 × 73,121.69
  4. Step 4: Simplify right side
    129,706.67x = 13,089,032,422.38
  5. Step 5: Solve for x
    x = 13,089,032,422.38/129,706.67
  6. Step 6: Final answer
    x = 100,912.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.