Home / 120,412.92-166,162.52-66,694.80

Finding the Fourth Proportional to 120,412.92, 166,162.52 and 66,694.80

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Solution

The fourth proportional to 120,412.92, 166,162.52 and 66,694.80 is: 92,034.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,412.92 : 166,162.52 = 66,694.80 : x
  2. Step 2: Convert to fraction form
    120,412.92/166,162.52 = 66,694.80/x
  3. Step 3: Cross multiply
    120,412.92x = 166,162.52 × 66,694.80
  4. Step 4: Simplify right side
    120,412.92x = 11,082,176,038.90
  5. Step 5: Solve for x
    x = 11,082,176,038.90/120,412.92
  6. Step 6: Final answer
    x = 92,034.78

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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.