Home / 122,020.21-168,387.96-68,305.33

Finding the Fourth Proportional to 122,020.21, 168,387.96 and 68,305.33

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Solution

The fourth proportional to 122,020.21, 168,387.96 and 68,305.33 is: 94,261.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,020.21 : 168,387.96 = 68,305.33 : x
  2. Step 2: Convert to fraction form
    122,020.21/168,387.96 = 68,305.33/x
  3. Step 3: Cross multiply
    122,020.21x = 168,387.96 × 68,305.33
  4. Step 4: Simplify right side
    122,020.21x = 11,501,795,175.83
  5. Step 5: Solve for x
    x = 11,501,795,175.83/122,020.21
  6. Step 6: Final answer
    x = 94,261.39

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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.