Home / 123,727.97-170,745.06-67,139.34

Finding the Fourth Proportional to 123,727.97, 170,745.06 and 67,139.34

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Solution

The fourth proportional to 123,727.97, 170,745.06 and 67,139.34 is: 92,652.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,727.97 : 170,745.06 = 67,139.34 : x
  2. Step 2: Convert to fraction form
    123,727.97/170,745.06 = 67,139.34/x
  3. Step 3: Cross multiply
    123,727.97x = 170,745.06 × 67,139.34
  4. Step 4: Simplify right side
    123,727.97x = 11,463,710,636.66
  5. Step 5: Solve for x
    x = 11,463,710,636.66/123,727.97
  6. Step 6: Final answer
    x = 92,652.54

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1.5x scale

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.