Home / 129,766.44-179,077.68-73,177.80

Finding the Fourth Proportional to 129,766.44, 179,077.68 and 73,177.80

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Solution

The fourth proportional to 129,766.44, 179,077.68 and 73,177.80 is: 100,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,766.44 : 179,077.68 = 73,177.80 : x
  2. Step 2: Convert to fraction form
    129,766.44/179,077.68 = 73,177.80/x
  3. Step 3: Cross multiply
    129,766.44x = 179,077.68 × 73,177.80
  4. Step 4: Simplify right side
    129,766.44x = 13,104,510,651.50
  5. Step 5: Solve for x
    x = 13,104,510,651.50/129,766.44
  6. Step 6: Final answer
    x = 100,985.36

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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.