Home / 221,566.92-305,760.79-120,964.92

Finding the Fourth Proportional to 221,566.92, 305,760.79 and 120,964.92

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Solution

The fourth proportional to 221,566.92, 305,760.79 and 120,964.92 is: 166,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,566.92 : 305,760.79 = 120,964.92 : x
  2. Step 2: Convert to fraction form
    221,566.92/305,760.79 = 120,964.92/x
  3. Step 3: Cross multiply
    221,566.92x = 305,760.79 × 120,964.92
  4. Step 4: Simplify right side
    221,566.92x = 36,986,329,501.49
  5. Step 5: Solve for x
    x = 36,986,329,501.49/221,566.92
  6. Step 6: Final answer
    x = 166,930.74

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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.