Home / 120,885.15-166,814.17-67,168.33

Finding the Fourth Proportional to 120,885.15, 166,814.17 and 67,168.33

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Solution

The fourth proportional to 120,885.15, 166,814.17 and 67,168.33 is: 92,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,885.15 : 166,814.17 = 67,168.33 : x
  2. Step 2: Convert to fraction form
    120,885.15/166,814.17 = 67,168.33/x
  3. Step 3: Cross multiply
    120,885.15x = 166,814.17 × 67,168.33
  4. Step 4: Simplify right side
    120,885.15x = 11,204,628,049.32
  5. Step 5: Solve for x
    x = 11,204,628,049.32/120,885.15
  6. Step 6: Final answer
    x = 92,688.21

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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.