Home / 120,010.91-165,608.94-66,285.54

Finding the Fourth Proportional to 120,010.91, 165,608.94 and 66,285.54

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Solution

The fourth proportional to 120,010.91, 165,608.94 and 66,285.54 is: 91,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,010.91 : 165,608.94 = 66,285.54 : x
  2. Step 2: Convert to fraction form
    120,010.91/165,608.94 = 66,285.54/x
  3. Step 3: Cross multiply
    120,010.91x = 165,608.94 × 66,285.54
  4. Step 4: Simplify right side
    120,010.91x = 10,977,476,857.26
  5. Step 5: Solve for x
    x = 10,977,476,857.26/120,010.91
  6. Step 6: Final answer
    x = 91,470.66

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1.5x scale

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.