Home / 208,819.08-288,039.24-123,876

Finding the Fourth Proportional to 208,819.08, 288,039.24 and 123,876

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Solution

The fourth proportional to 208,819.08, 288,039.24 and 123,876 is: 170,871.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,819.08 : 288,039.24 = 123,876 : x
  2. Step 2: Convert to fraction form
    208,819.08/288,039.24 = 123,876/x
  3. Step 3: Cross multiply
    208,819.08x = 288,039.24 × 123,876
  4. Step 4: Simplify right side
    208,819.08x = 35,681,148,894.24
  5. Step 5: Solve for x
    x = 35,681,148,894.24/208,819.08
  6. Step 6: Final answer
    x = 170,871.11

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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.