Home / 129,942.14-179,318.23-72,582.26

Finding the Fourth Proportional to 129,942.14, 179,318.23 and 72,582.26

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Solution

The fourth proportional to 129,942.14, 179,318.23 and 72,582.26 is: 100,162.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,942.14 : 179,318.23 = 72,582.26 : x
  2. Step 2: Convert to fraction form
    129,942.14/179,318.23 = 72,582.26/x
  3. Step 3: Cross multiply
    129,942.14x = 179,318.23 × 72,582.26
  4. Step 4: Simplify right side
    129,942.14x = 13,015,322,659.44
  5. Step 5: Solve for x
    x = 13,015,322,659.44/129,942.14
  6. Step 6: Final answer
    x = 100,162.44

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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.