Home / 120,305.22-166,016.97-66,590.34

Finding the Fourth Proportional to 120,305.22, 166,016.97 and 66,590.34

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Solution

The fourth proportional to 120,305.22, 166,016.97 and 66,590.34 is: 91,892.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,305.22 : 166,016.97 = 66,590.34 : x
  2. Step 2: Convert to fraction form
    120,305.22/166,016.97 = 66,590.34/x
  3. Step 3: Cross multiply
    120,305.22x = 166,016.97 × 66,590.34
  4. Step 4: Simplify right side
    120,305.22x = 11,055,126,478.07
  5. Step 5: Solve for x
    x = 11,055,126,478.07/120,305.22
  6. Step 6: Final answer
    x = 91,892.33

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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.