Home / 221,067.01-331,283.67-126,100.72

Finding the Fourth Proportional to 221,067.01, 331,283.67 and 126,100.72

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Solution

The fourth proportional to 221,067.01, 331,283.67 and 126,100.72 is: 188,970.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,067.01 : 331,283.67 = 126,100.72 : x
  2. Step 2: Convert to fraction form
    221,067.01/331,283.67 = 126,100.72/x
  3. Step 3: Cross multiply
    221,067.01x = 331,283.67 × 126,100.72
  4. Step 4: Simplify right side
    221,067.01x = 41,775,109,311.24
  5. Step 5: Solve for x
    x = 41,775,109,311.24/221,067.01
  6. Step 6: Final answer
    x = 188,970.35

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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.