Home / 120,246.54-165,939.48-66,530.58

Finding the Fourth Proportional to 120,246.54, 165,939.48 and 66,530.58

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Solution

The fourth proportional to 120,246.54, 165,939.48 and 66,530.58 is: 91,811.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,246.54 : 165,939.48 = 66,530.58 : x
  2. Step 2: Convert to fraction form
    120,246.54/165,939.48 = 66,530.58/x
  3. Step 3: Cross multiply
    120,246.54x = 165,939.48 × 66,530.58
  4. Step 4: Simplify right side
    120,246.54x = 11,040,049,849.30
  5. Step 5: Solve for x
    x = 11,040,049,849.30/120,246.54
  6. Step 6: Final answer
    x = 91,811.79

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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.