Home / 120,642-166,467.92-66,926.85

Finding the Fourth Proportional to 120,642, 166,467.92 and 66,926.85

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Solution

The fourth proportional to 120,642, 166,467.92 and 66,926.85 is: 92,349.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,642 : 166,467.92 = 66,926.85 : x
  2. Step 2: Convert to fraction form
    120,642/166,467.92 = 66,926.85/x
  3. Step 3: Cross multiply
    120,642x = 166,467.92 × 66,926.85
  4. Step 4: Simplify right side
    120,642x = 11,141,173,511.65
  5. Step 5: Solve for x
    x = 11,141,173,511.65/120,642
  6. Step 6: Final answer
    x = 92,349.05

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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.