Home / 129,725.18-179,023.50-73,136.56

Finding the Fourth Proportional to 129,725.18, 179,023.50 and 73,136.56

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Solution

The fourth proportional to 129,725.18, 179,023.50 and 73,136.56 is: 100,930.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,725.18 : 179,023.50 = 73,136.56 : x
  2. Step 2: Convert to fraction form
    129,725.18/179,023.50 = 73,136.56/x
  3. Step 3: Cross multiply
    129,725.18x = 179,023.50 × 73,136.56
  4. Step 4: Simplify right side
    129,725.18x = 13,093,162,949.16
  5. Step 5: Solve for x
    x = 13,093,162,949.16/129,725.18
  6. Step 6: Final answer
    x = 100,930.00

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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.