Home / 129,976.94-179,359.58-75,524.28

Finding the Fourth Proportional to 129,976.94, 179,359.58 and 75,524.28

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Solution

The fourth proportional to 129,976.94, 179,359.58 and 75,524.28 is: 104,218.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,976.94 : 179,359.58 = 75,524.28 : x
  2. Step 2: Convert to fraction form
    129,976.94/179,359.58 = 75,524.28/x
  3. Step 3: Cross multiply
    129,976.94x = 179,359.58 × 75,524.28
  4. Step 4: Simplify right side
    129,976.94x = 13,546,003,140.60
  5. Step 5: Solve for x
    x = 13,546,003,140.60/129,976.94
  6. Step 6: Final answer
    x = 104,218.51

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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.