Home / 129,725.73-179,021.75-73,136.97

Finding the Fourth Proportional to 129,725.73, 179,021.75 and 73,136.97

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Solution

The fourth proportional to 129,725.73, 179,021.75 and 73,136.97 is: 100,929.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,725.73 : 179,021.75 = 73,136.97 : x
  2. Step 2: Convert to fraction form
    129,725.73/179,021.75 = 73,136.97/x
  3. Step 3: Cross multiply
    129,725.73x = 179,021.75 × 73,136.97
  4. Step 4: Simplify right side
    129,725.73x = 13,093,107,993.41
  5. Step 5: Solve for x
    x = 13,093,107,993.41/129,725.73
  6. Step 6: Final answer
    x = 100,929.15

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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.