Home / 129,760.94-179,054.07-76,033.64

Finding the Fourth Proportional to 129,760.94, 179,054.07 and 76,033.64

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Solution

The fourth proportional to 129,760.94, 179,054.07 and 76,033.64 is: 104,917.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,760.94 : 179,054.07 = 76,033.64 : x
  2. Step 2: Convert to fraction form
    129,760.94/179,054.07 = 76,033.64/x
  3. Step 3: Cross multiply
    129,760.94x = 179,054.07 × 76,033.64
  4. Step 4: Simplify right side
    129,760.94x = 13,614,132,698.91
  5. Step 5: Solve for x
    x = 13,614,132,698.91/129,760.94
  6. Step 6: Final answer
    x = 104,917.03

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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.