Home / 219,782.34-329,680.23-75,686.61

Finding the Fourth Proportional to 219,782.34, 329,680.23 and 75,686.61

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Solution

The fourth proportional to 219,782.34, 329,680.23 and 75,686.61 is: 113,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,782.34 : 329,680.23 = 75,686.61 : x
  2. Step 2: Convert to fraction form
    219,782.34/329,680.23 = 75,686.61/x
  3. Step 3: Cross multiply
    219,782.34x = 329,680.23 × 75,686.61
  4. Step 4: Simplify right side
    219,782.34x = 24,952,378,992.72
  5. Step 5: Solve for x
    x = 24,952,378,992.72/219,782.34
  6. Step 6: Final answer
    x = 113,532.23

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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.