Home / 119,940.20-165,514.31-66,224.06

Finding the Fourth Proportional to 119,940.20, 165,514.31 and 66,224.06

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Solution

The fourth proportional to 119,940.20, 165,514.31 and 66,224.06 is: 91,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,940.20 : 165,514.31 = 66,224.06 : x
  2. Step 2: Convert to fraction form
    119,940.20/165,514.31 = 66,224.06/x
  3. Step 3: Cross multiply
    119,940.20x = 165,514.31 × 66,224.06
  4. Step 4: Simplify right side
    119,940.20x = 10,961,029,596.30
  5. Step 5: Solve for x
    x = 10,961,029,596.30/119,940.20
  6. Step 6: Final answer
    x = 91,387.45

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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.