Home / 219,799.80-303,367.92-129,185.04

Finding the Fourth Proportional to 219,799.80, 303,367.92 and 129,185.04

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Solution

The fourth proportional to 219,799.80, 303,367.92 and 129,185.04 is: 178,301.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,799.80 : 303,367.92 = 129,185.04 : x
  2. Step 2: Convert to fraction form
    219,799.80/303,367.92 = 129,185.04/x
  3. Step 3: Cross multiply
    219,799.80x = 303,367.92 × 129,185.04
  4. Step 4: Simplify right side
    219,799.80x = 39,190,596,879.92
  5. Step 5: Solve for x
    x = 39,190,596,879.92/219,799.80
  6. Step 6: Final answer
    x = 178,301.33

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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.