Home / 106,249.86-159,356.30-39,690.54

Finding the Fourth Proportional to 106,249.86, 159,356.30 and 39,690.54

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Solution

The fourth proportional to 106,249.86, 159,356.30 and 39,690.54 is: 59,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,249.86 : 159,356.30 = 39,690.54 : x
  2. Step 2: Convert to fraction form
    106,249.86/159,356.30 = 39,690.54/x
  3. Step 3: Cross multiply
    106,249.86x = 159,356.30 × 39,690.54
  4. Step 4: Simplify right side
    106,249.86x = 6,324,937,400.95
  5. Step 5: Solve for x
    x = 6,324,937,400.95/106,249.86
  6. Step 6: Final answer
    x = 59,528.90

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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.