Home / 120,245.24-165,934.44-66,530.36

Finding the Fourth Proportional to 120,245.24, 165,934.44 and 66,530.36

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Solution

The fourth proportional to 120,245.24, 165,934.44 and 66,530.36 is: 91,809.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,245.24 : 165,934.44 = 66,530.36 : x
  2. Step 2: Convert to fraction form
    120,245.24/165,934.44 = 66,530.36/x
  3. Step 3: Cross multiply
    120,245.24x = 165,934.44 × 66,530.36
  4. Step 4: Simplify right side
    120,245.24x = 11,039,678,029.60
  5. Step 5: Solve for x
    x = 11,039,678,029.60/120,245.24
  6. Step 6: Final answer
    x = 91,809.69

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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.