Home / 129,758.89-179,067.30-73,170.28

Finding the Fourth Proportional to 129,758.89, 179,067.30 and 73,170.28

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Solution

The fourth proportional to 129,758.89, 179,067.30 and 73,170.28 is: 100,975.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,758.89 : 179,067.30 = 73,170.28 : x
  2. Step 2: Convert to fraction form
    129,758.89/179,067.30 = 73,170.28/x
  3. Step 3: Cross multiply
    129,758.89x = 179,067.30 × 73,170.28
  4. Step 4: Simplify right side
    129,758.89x = 13,102,404,479.84
  5. Step 5: Solve for x
    x = 13,102,404,479.84/129,758.89
  6. Step 6: Final answer
    x = 100,975.00

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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.