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Finding the Fourth Proportional to 168,020.70, 231,712.77 and 122,626.77

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Solution

The fourth proportional to 168,020.70, 231,712.77 and 122,626.77 is: 169,111.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,020.70 : 231,712.77 = 122,626.77 : x
  2. Step 2: Convert to fraction form
    168,020.70/231,712.77 = 122,626.77/x
  3. Step 3: Cross multiply
    168,020.70x = 231,712.77 × 122,626.77
  4. Step 4: Simplify right side
    168,020.70x = 28,414,188,552.85
  5. Step 5: Solve for x
    x = 28,414,188,552.85/168,020.70
  6. Step 6: Final answer
    x = 169,111.24

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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.