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Finding the Fourth Proportional to 123,120.63, 169,896.29 and 69,418.85

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Solution

The fourth proportional to 123,120.63, 169,896.29 and 69,418.85 is: 95,792.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,120.63 : 169,896.29 = 69,418.85 : x
  2. Step 2: Convert to fraction form
    123,120.63/169,896.29 = 69,418.85/x
  3. Step 3: Cross multiply
    123,120.63x = 169,896.29 × 69,418.85
  4. Step 4: Simplify right side
    123,120.63x = 11,794,003,874.49
  5. Step 5: Solve for x
    x = 11,794,003,874.49/123,120.63
  6. Step 6: Final answer
    x = 95,792.26

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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.