Home / 120,424.59-166,185.90-66,713.09

Finding the Fourth Proportional to 120,424.59, 166,185.90 and 66,713.09

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Solution

The fourth proportional to 120,424.59, 166,185.90 and 66,713.09 is: 92,064.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,424.59 : 166,185.90 = 66,713.09 : x
  2. Step 2: Convert to fraction form
    120,424.59/166,185.90 = 66,713.09/x
  3. Step 3: Cross multiply
    120,424.59x = 166,185.90 × 66,713.09
  4. Step 4: Simplify right side
    120,424.59x = 11,086,774,072.50
  5. Step 5: Solve for x
    x = 11,086,774,072.50/120,424.59
  6. Step 6: Final answer
    x = 92,064.04

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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.