Home / 120,887.15-166,816.92-67,170.33

Finding the Fourth Proportional to 120,887.15, 166,816.92 and 67,170.33

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Solution

The fourth proportional to 120,887.15, 166,816.92 and 67,170.33 is: 92,690.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,887.15 : 166,816.92 = 67,170.33 : x
  2. Step 2: Convert to fraction form
    120,887.15/166,816.92 = 67,170.33/x
  3. Step 3: Cross multiply
    120,887.15x = 166,816.92 × 67,170.33
  4. Step 4: Simplify right side
    120,887.15x = 11,205,147,565.98
  5. Step 5: Solve for x
    x = 11,205,147,565.98/120,887.15
  6. Step 6: Final answer
    x = 92,690.97

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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.