Home / 120,716.45-166,586.18-66,998.26

Finding the Fourth Proportional to 120,716.45, 166,586.18 and 66,998.26

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Solution

The fourth proportional to 120,716.45, 166,586.18 and 66,998.26 is: 92,456.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,716.45 : 166,586.18 = 66,998.26 : x
  2. Step 2: Convert to fraction form
    120,716.45/166,586.18 = 66,998.26/x
  3. Step 3: Cross multiply
    120,716.45x = 166,586.18 × 66,998.26
  4. Step 4: Simplify right side
    120,716.45x = 11,160,984,200.05
  5. Step 5: Solve for x
    x = 11,160,984,200.05/120,716.45
  6. Step 6: Final answer
    x = 92,456.20

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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.