Home / 106,391.30-159,647.78-53,804.66

Finding the Fourth Proportional to 106,391.30, 159,647.78 and 53,804.66

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Solution

The fourth proportional to 106,391.30, 159,647.78 and 53,804.66 is: 80,737.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,391.30 : 159,647.78 = 53,804.66 : x
  2. Step 2: Convert to fraction form
    106,391.30/159,647.78 = 53,804.66/x
  3. Step 3: Cross multiply
    106,391.30x = 159,647.78 × 53,804.66
  4. Step 4: Simplify right side
    106,391.30x = 8,589,793,858.93
  5. Step 5: Solve for x
    x = 8,589,793,858.93/106,391.30
  6. Step 6: Final answer
    x = 80,737.75

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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.