Home / 146,799.80-219,908.10-80,120.60

Finding the Fourth Proportional to 146,799.80, 219,908.10 and 80,120.60

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Solution

The fourth proportional to 146,799.80, 219,908.10 and 80,120.60 is: 120,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,799.80 : 219,908.10 = 80,120.60 : x
  2. Step 2: Convert to fraction form
    146,799.80/219,908.10 = 80,120.60/x
  3. Step 3: Cross multiply
    146,799.80x = 219,908.10 × 80,120.60
  4. Step 4: Simplify right side
    146,799.80x = 17,619,168,916.86
  5. Step 5: Solve for x
    x = 17,619,168,916.86/146,799.80
  6. Step 6: Final answer
    x = 120,021.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.