Home / 208,997.39-288,418.52-113,505.95

Finding the Fourth Proportional to 208,997.39, 288,418.52 and 113,505.95

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Solution

The fourth proportional to 208,997.39, 288,418.52 and 113,505.95 is: 156,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,997.39 : 288,418.52 = 113,505.95 : x
  2. Step 2: Convert to fraction form
    208,997.39/288,418.52 = 113,505.95/x
  3. Step 3: Cross multiply
    208,997.39x = 288,418.52 × 113,505.95
  4. Step 4: Simplify right side
    208,997.39x = 32,737,218,110.19
  5. Step 5: Solve for x
    x = 32,737,218,110.19/208,997.39
  6. Step 6: Final answer
    x = 156,639.36

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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.