Home / 123,506.54-170,439.07-66,917.92

Finding the Fourth Proportional to 123,506.54, 170,439.07 and 66,917.92

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Solution

The fourth proportional to 123,506.54, 170,439.07 and 66,917.92 is: 92,346.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,506.54 : 170,439.07 = 66,917.92 : x
  2. Step 2: Convert to fraction form
    123,506.54/170,439.07 = 66,917.92/x
  3. Step 3: Cross multiply
    123,506.54x = 170,439.07 × 66,917.92
  4. Step 4: Simplify right side
    123,506.54x = 11,405,427,198.94
  5. Step 5: Solve for x
    x = 11,405,427,198.94/123,506.54
  6. Step 6: Final answer
    x = 92,346.75

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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.