Home / 80,154.45-119,579.87-68,393.25

Finding the Fourth Proportional to 80,154.45, 119,579.87 and 68,393.25

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Solution

The fourth proportional to 80,154.45, 119,579.87 and 68,393.25 is: 102,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,154.45 : 119,579.87 = 68,393.25 : x
  2. Step 2: Convert to fraction form
    80,154.45/119,579.87 = 68,393.25/x
  3. Step 3: Cross multiply
    80,154.45x = 119,579.87 × 68,393.25
  4. Step 4: Simplify right side
    80,154.45x = 8,178,456,114.86
  5. Step 5: Solve for x
    x = 8,178,456,114.86/80,154.45
  6. Step 6: Final answer
    x = 102,033.71

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.