Home / 123,456.56-170,370.06-66,867.94

Finding the Fourth Proportional to 123,456.56, 170,370.06 and 66,867.94

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Solution

The fourth proportional to 123,456.56, 170,370.06 and 66,867.94 is: 92,277.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,456.56 : 170,370.06 = 66,867.94 : x
  2. Step 2: Convert to fraction form
    123,456.56/170,370.06 = 66,867.94/x
  3. Step 3: Cross multiply
    123,456.56x = 170,370.06 × 66,867.94
  4. Step 4: Simplify right side
    123,456.56x = 11,392,294,523.95
  5. Step 5: Solve for x
    x = 11,392,294,523.95/123,456.56
  6. Step 6: Final answer
    x = 92,277.76

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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.