Home / 259,876.23-389,839.88-108,041.95

Finding the Fourth Proportional to 259,876.23, 389,839.88 and 108,041.95

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Solution

The fourth proportional to 259,876.23, 389,839.88 and 108,041.95 is: 162,073.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,876.23 : 389,839.88 = 108,041.95 : x
  2. Step 2: Convert to fraction form
    259,876.23/389,839.88 = 108,041.95/x
  3. Step 3: Cross multiply
    259,876.23x = 389,839.88 × 108,041.95
  4. Step 4: Simplify right side
    259,876.23x = 42,119,060,822.97
  5. Step 5: Solve for x
    x = 42,119,060,822.97/259,876.23
  6. Step 6: Final answer
    x = 162,073.54

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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.