Home / 120,822.12-166,734.54-67,112.13

Finding the Fourth Proportional to 120,822.12, 166,734.54 and 67,112.13

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Solution

The fourth proportional to 120,822.12, 166,734.54 and 67,112.13 is: 92,614.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,822.12 : 166,734.54 = 67,112.13 : x
  2. Step 2: Convert to fraction form
    120,822.12/166,734.54 = 67,112.13/x
  3. Step 3: Cross multiply
    120,822.12x = 166,734.54 × 67,112.13
  4. Step 4: Simplify right side
    120,822.12x = 11,189,910,749.22
  5. Step 5: Solve for x
    x = 11,189,910,749.22/120,822.12
  6. Step 6: Final answer
    x = 92,614.75

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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.