Home / 120,742.68-166,625.54-75,446.96

Finding the Fourth Proportional to 120,742.68, 166,625.54 and 75,446.96

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Solution

The fourth proportional to 120,742.68, 166,625.54 and 75,446.96 is: 104,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,742.68 : 166,625.54 = 75,446.96 : x
  2. Step 2: Convert to fraction form
    120,742.68/166,625.54 = 75,446.96/x
  3. Step 3: Cross multiply
    120,742.68x = 166,625.54 × 75,446.96
  4. Step 4: Simplify right side
    120,742.68x = 12,571,389,241.00
  5. Step 5: Solve for x
    x = 12,571,389,241.00/120,742.68
  6. Step 6: Final answer
    x = 104,117.20

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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.