Home / 120,713.66-166,577.06-66,998.70

Finding the Fourth Proportional to 120,713.66, 166,577.06 and 66,998.70

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Solution

The fourth proportional to 120,713.66, 166,577.06 and 66,998.70 is: 92,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,713.66 : 166,577.06 = 66,998.70 : x
  2. Step 2: Convert to fraction form
    120,713.66/166,577.06 = 66,998.70/x
  3. Step 3: Cross multiply
    120,713.66x = 166,577.06 × 66,998.70
  4. Step 4: Simplify right side
    120,713.66x = 11,160,446,469.82
  5. Step 5: Solve for x
    x = 11,160,446,469.82/120,713.66
  6. Step 6: Final answer
    x = 92,453.88

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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.