Home / 339,827.12-509,707.77-103,171.85

Finding the Fourth Proportional to 339,827.12, 509,707.77 and 103,171.85

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Solution

The fourth proportional to 339,827.12, 509,707.77 and 103,171.85 is: 154,747.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,827.12 : 509,707.77 = 103,171.85 : x
  2. Step 2: Convert to fraction form
    339,827.12/509,707.77 = 103,171.85/x
  3. Step 3: Cross multiply
    339,827.12x = 509,707.77 × 103,171.85
  4. Step 4: Simplify right side
    339,827.12x = 52,587,493,590.27
  5. Step 5: Solve for x
    x = 52,587,493,590.27/339,827.12
  6. Step 6: Final answer
    x = 154,747.78

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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.