Home / 129,760.60-179,069.34-73,171.58

Finding the Fourth Proportional to 129,760.60, 179,069.34 and 73,171.58

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Solution

The fourth proportional to 129,760.60, 179,069.34 and 73,171.58 is: 100,976.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760.60 : 179,069.34 = 73,171.58 : x
  2. Step 2: Convert to fraction form
    129,760.60/179,069.34 = 73,171.58/x
  3. Step 3: Cross multiply
    129,760.60x = 179,069.34 × 73,171.58
  4. Step 4: Simplify right side
    129,760.60x = 13,102,786,537.36
  5. Step 5: Solve for x
    x = 13,102,786,537.36/129,760.60
  6. Step 6: Final answer
    x = 100,976.62

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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.