Home / 123,690.56-170,692.99-69,974.46

Finding the Fourth Proportional to 123,690.56, 170,692.99 and 69,974.46

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Solution

The fourth proportional to 123,690.56, 170,692.99 and 69,974.46 is: 96,564.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,690.56 : 170,692.99 = 69,974.46 : x
  2. Step 2: Convert to fraction form
    123,690.56/170,692.99 = 69,974.46/x
  3. Step 3: Cross multiply
    123,690.56x = 170,692.99 × 69,974.46
  4. Step 4: Simplify right side
    123,690.56x = 11,944,149,626.10
  5. Step 5: Solve for x
    x = 11,944,149,626.10/123,690.56
  6. Step 6: Final answer
    x = 96,564.77

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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.