Home / 120,732.21-166,611.09-75,436.46

Finding the Fourth Proportional to 120,732.21, 166,611.09 and 75,436.46

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Solution

The fourth proportional to 120,732.21, 166,611.09 and 75,436.46 is: 104,102.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,732.21 : 166,611.09 = 75,436.46 : x
  2. Step 2: Convert to fraction form
    120,732.21/166,611.09 = 75,436.46/x
  3. Step 3: Cross multiply
    120,732.21x = 166,611.09 × 75,436.46
  4. Step 4: Simplify right side
    120,732.21x = 12,568,550,826.34
  5. Step 5: Solve for x
    x = 12,568,550,826.34/120,732.21
  6. Step 6: Final answer
    x = 104,102.71

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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.