Home / 120,272.94-165,976.98-66,561.66

Finding the Fourth Proportional to 120,272.94, 165,976.98 and 66,561.66

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Solution

The fourth proportional to 120,272.94, 165,976.98 and 66,561.66 is: 91,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,272.94 : 165,976.98 = 66,561.66 : x
  2. Step 2: Convert to fraction form
    120,272.94/165,976.98 = 66,561.66/x
  3. Step 3: Cross multiply
    120,272.94x = 165,976.98 × 66,561.66
  4. Step 4: Simplify right side
    120,272.94x = 11,047,703,310.59
  5. Step 5: Solve for x
    x = 11,047,703,310.59/120,272.94
  6. Step 6: Final answer
    x = 91,855.27

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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.