Home / 130,382.91-179,922.20-80,072.19

Finding the Fourth Proportional to 130,382.91, 179,922.20 and 80,072.19

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Solution

The fourth proportional to 130,382.91, 179,922.20 and 80,072.19 is: 110,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,382.91 : 179,922.20 = 80,072.19 : x
  2. Step 2: Convert to fraction form
    130,382.91/179,922.20 = 80,072.19/x
  3. Step 3: Cross multiply
    130,382.91x = 179,922.20 × 80,072.19
  4. Step 4: Simplify right side
    130,382.91x = 14,406,764,183.26
  5. Step 5: Solve for x
    x = 14,406,764,183.26/130,382.91
  6. Step 6: Final answer
    x = 110,495.80

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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.