Home / 129,793.69-179,115.20-73,205.07

Finding the Fourth Proportional to 129,793.69, 179,115.20 and 73,205.07

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Solution

The fourth proportional to 129,793.69, 179,115.20 and 73,205.07 is: 101,022.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,793.69 : 179,115.20 = 73,205.07 : x
  2. Step 2: Convert to fraction form
    129,793.69/179,115.20 = 73,205.07/x
  3. Step 3: Cross multiply
    129,793.69x = 179,115.20 × 73,205.07
  4. Step 4: Simplify right side
    129,793.69x = 13,112,139,990.88
  5. Step 5: Solve for x
    x = 13,112,139,990.88/129,793.69
  6. Step 6: Final answer
    x = 101,022.94

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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.