Home / 120,749.22-166,524.84-75,431.34

Finding the Fourth Proportional to 120,749.22, 166,524.84 and 75,431.34

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Solution

The fourth proportional to 120,749.22, 166,524.84 and 75,431.34 is: 104,027.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,749.22 : 166,524.84 = 75,431.34 : x
  2. Step 2: Convert to fraction form
    120,749.22/166,524.84 = 75,431.34/x
  3. Step 3: Cross multiply
    120,749.22x = 166,524.84 × 75,431.34
  4. Step 4: Simplify right side
    120,749.22x = 12,561,191,824.49
  5. Step 5: Solve for x
    x = 12,561,191,824.49/120,749.22
  6. Step 6: Final answer
    x = 104,027.11

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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.