Home / 120,638.52-166,481.58-66,924.60

Finding the Fourth Proportional to 120,638.52, 166,481.58 and 66,924.60

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Solution

The fourth proportional to 120,638.52, 166,481.58 and 66,924.60 is: 92,356.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,638.52 : 166,481.58 = 66,924.60 : x
  2. Step 2: Convert to fraction form
    120,638.52/166,481.58 = 66,924.60/x
  3. Step 3: Cross multiply
    120,638.52x = 166,481.58 × 66,924.60
  4. Step 4: Simplify right side
    120,638.52x = 11,141,713,148.87
  5. Step 5: Solve for x
    x = 11,141,713,148.87/120,638.52
  6. Step 6: Final answer
    x = 92,356.18

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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.