Home / 206,379.42-284,806.71-120,336.06

Finding the Fourth Proportional to 206,379.42, 284,806.71 and 120,336.06

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Solution

The fourth proportional to 206,379.42, 284,806.71 and 120,336.06 is: 166,065.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,379.42 : 284,806.71 = 120,336.06 : x
  2. Step 2: Convert to fraction form
    206,379.42/284,806.71 = 120,336.06/x
  3. Step 3: Cross multiply
    206,379.42x = 284,806.71 × 120,336.06
  4. Step 4: Simplify right side
    206,379.42x = 34,272,517,342.96
  5. Step 5: Solve for x
    x = 34,272,517,342.96/206,379.42
  6. Step 6: Final answer
    x = 166,065.58

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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.