Home / 120,364.26-166,100.63-66,648.12

Finding the Fourth Proportional to 120,364.26, 166,100.63 and 66,648.12

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Solution

The fourth proportional to 120,364.26, 166,100.63 and 66,648.12 is: 91,973.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,364.26 : 166,100.63 = 66,648.12 : x
  2. Step 2: Convert to fraction form
    120,364.26/166,100.63 = 66,648.12/x
  3. Step 3: Cross multiply
    120,364.26x = 166,100.63 × 66,648.12
  4. Step 4: Simplify right side
    120,364.26x = 11,070,293,764.20
  5. Step 5: Solve for x
    x = 11,070,293,764.20/120,364.26
  6. Step 6: Final answer
    x = 91,973.27

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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.