Home / 123,163.20-169,974.84-68,732.40

Finding the Fourth Proportional to 123,163.20, 169,974.84 and 68,732.40

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Solution

The fourth proportional to 123,163.20, 169,974.84 and 68,732.40 is: 94,856.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,163.20 : 169,974.84 = 68,732.40 : x
  2. Step 2: Convert to fraction form
    123,163.20/169,974.84 = 68,732.40/x
  3. Step 3: Cross multiply
    123,163.20x = 169,974.84 × 68,732.40
  4. Step 4: Simplify right side
    123,163.20x = 11,682,778,692.82
  5. Step 5: Solve for x
    x = 11,682,778,692.82/123,163.20
  6. Step 6: Final answer
    x = 94,856.08

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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.