Home / 208,913.86-288,301.62-113,418.50

Finding the Fourth Proportional to 208,913.86, 288,301.62 and 113,418.50

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Solution

The fourth proportional to 208,913.86, 288,301.62 and 113,418.50 is: 156,517.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,913.86 : 288,301.62 = 113,418.50 : x
  2. Step 2: Convert to fraction form
    208,913.86/288,301.62 = 113,418.50/x
  3. Step 3: Cross multiply
    208,913.86x = 288,301.62 × 113,418.50
  4. Step 4: Simplify right side
    208,913.86x = 32,698,737,906.85
  5. Step 5: Solve for x
    x = 32,698,737,906.85/208,913.86
  6. Step 6: Final answer
    x = 156,517.80

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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.