Home / 120,272.22-165,971.57-66,559.50

Finding the Fourth Proportional to 120,272.22, 165,971.57 and 66,559.50

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Solution

The fourth proportional to 120,272.22, 165,971.57 and 66,559.50 is: 91,849.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,272.22 : 165,971.57 = 66,559.50 : x
  2. Step 2: Convert to fraction form
    120,272.22/165,971.57 = 66,559.50/x
  3. Step 3: Cross multiply
    120,272.22x = 165,971.57 × 66,559.50
  4. Step 4: Simplify right side
    120,272.22x = 11,046,984,380.62
  5. Step 5: Solve for x
    x = 11,046,984,380.62/120,272.22
  6. Step 6: Final answer
    x = 91,849.84

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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.