Home / 129,942.10-179,289.48-73,342.54

Finding the Fourth Proportional to 129,942.10, 179,289.48 and 73,342.54

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Solution

The fourth proportional to 129,942.10, 179,289.48 and 73,342.54 is: 101,195.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,942.10 : 179,289.48 = 73,342.54 : x
  2. Step 2: Convert to fraction form
    129,942.10/179,289.48 = 73,342.54/x
  3. Step 3: Cross multiply
    129,942.10x = 179,289.48 × 73,342.54
  4. Step 4: Simplify right side
    129,942.10x = 13,149,545,858.48
  5. Step 5: Solve for x
    x = 13,149,545,858.48/129,942.10
  6. Step 6: Final answer
    x = 101,195.42

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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.