Home / 235,367.22-324,890.04-139,872.78

Finding the Fourth Proportional to 235,367.22, 324,890.04 and 139,872.78

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Solution

The fourth proportional to 235,367.22, 324,890.04 and 139,872.78 is: 193,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,367.22 : 324,890.04 = 139,872.78 : x
  2. Step 2: Convert to fraction form
    235,367.22/324,890.04 = 139,872.78/x
  3. Step 3: Cross multiply
    235,367.22x = 324,890.04 × 139,872.78
  4. Step 4: Simplify right side
    235,367.22x = 45,443,273,089.11
  5. Step 5: Solve for x
    x = 45,443,273,089.11/235,367.22
  6. Step 6: Final answer
    x = 193,073.93

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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.