Home / 129,750.80-179,057.40-76,067.60

Finding the Fourth Proportional to 129,750.80, 179,057.40 and 76,067.60

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Solution

The fourth proportional to 129,750.80, 179,057.40 and 76,067.60 is: 104,974.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,750.80 : 179,057.40 = 76,067.60 : x
  2. Step 2: Convert to fraction form
    129,750.80/179,057.40 = 76,067.60/x
  3. Step 3: Cross multiply
    129,750.80x = 179,057.40 × 76,067.60
  4. Step 4: Simplify right side
    129,750.80x = 13,620,466,680.24
  5. Step 5: Solve for x
    x = 13,620,466,680.24/129,750.80
  6. Step 6: Final answer
    x = 104,974.05

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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.