Home / 120,335.96-166,091.53-80,051.42

Finding the Fourth Proportional to 120,335.96, 166,091.53 and 80,051.42

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Solution

The fourth proportional to 120,335.96, 166,091.53 and 80,051.42 is: 110,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,335.96 : 166,091.53 = 80,051.42 : x
  2. Step 2: Convert to fraction form
    120,335.96/166,091.53 = 80,051.42/x
  3. Step 3: Cross multiply
    120,335.96x = 166,091.53 × 80,051.42
  4. Step 4: Simplify right side
    120,335.96x = 13,295,861,795.89
  5. Step 5: Solve for x
    x = 13,295,861,795.89/120,335.96
  6. Step 6: Final answer
    x = 110,489.52

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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.