Home / 129,759.60-179,067.96-73,170.58

Finding the Fourth Proportional to 129,759.60, 179,067.96 and 73,170.58

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Solution

The fourth proportional to 129,759.60, 179,067.96 and 73,170.58 is: 100,975.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,759.60 : 179,067.96 = 73,170.58 : x
  2. Step 2: Convert to fraction form
    129,759.60/179,067.96 = 73,170.58/x
  3. Step 3: Cross multiply
    129,759.60x = 179,067.96 × 73,170.58
  4. Step 4: Simplify right side
    129,759.60x = 13,102,506,492.62
  5. Step 5: Solve for x
    x = 13,102,506,492.62/129,759.60
  6. Step 6: Final answer
    x = 100,975.24

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1.5x scale

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.