Home / 120,556.58-166,367.82-66,840.20

Finding the Fourth Proportional to 120,556.58, 166,367.82 and 66,840.20

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Solution

The fourth proportional to 120,556.58, 166,367.82 and 66,840.20 is: 92,239.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,556.58 : 166,367.82 = 66,840.20 : x
  2. Step 2: Convert to fraction form
    120,556.58/166,367.82 = 66,840.20/x
  3. Step 3: Cross multiply
    120,556.58x = 166,367.82 × 66,840.20
  4. Step 4: Simplify right side
    120,556.58x = 11,120,058,362.36
  5. Step 5: Solve for x
    x = 11,120,058,362.36/120,556.58
  6. Step 6: Final answer
    x = 92,239.33

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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.