Home / 168,019.20-231,710.70-122,625.27

Finding the Fourth Proportional to 168,019.20, 231,710.70 and 122,625.27

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Solution

The fourth proportional to 168,019.20, 231,710.70 and 122,625.27 is: 169,109.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,019.20 : 231,710.70 = 122,625.27 : x
  2. Step 2: Convert to fraction form
    168,019.20/231,710.70 = 122,625.27/x
  3. Step 3: Cross multiply
    168,019.20x = 231,710.70 × 122,625.27
  4. Step 4: Simplify right side
    168,019.20x = 28,413,587,149.39
  5. Step 5: Solve for x
    x = 28,413,587,149.39/168,019.20
  6. Step 6: Final answer
    x = 169,109.17

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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.